Smartpeople

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Bill Gates

Sharing things I'm learning through my foundation work and other interests...
6,740,884 followers |

Al Gore

2,419,621 followers |

Chris Hardwick

I am Chris Hardwick and these are my Tweets!
1,610,526 followers |

Dr. Sanjay Gupta

Staff Neurosurgeon, Emory Clinic CNN Chief Medical Correspondent
1,456,502 followers |

Mike Massimino

NASA astronaut, mission specialist for STS-125
1,254,629 followers |

Neil deGrasse Tyson

Astrophysicist, American Museum of Natural History. Author: Space Chronicle, The Pluto Files,. Host: StarTalk Radio http://StarTalkRadio.net
490,937 followers |

Mariel Hemingway

Present. Bold. LAUGHTER and PLAY. Making healthy choices so I can be my best self. ~ @TheWillingWay @UMatterDontQuit #YouMatterDontQuit
450,463 followers |

Jenna Wortham

@NYTimes tech reporter, @Wired alum. GIF maker, news breaker. Bday cake enthusiast. I can teach you how to dougie. Side hustle: http://girlcrushzine.tumblr.com
449,536 followers |

Richard Dawkins

Richard Dawkins Personal Twitter Account.
373,510 followers |

Gina Trapani

I make @ThinkUpapp, @todotxtapps & @Smarterware. I host This Week in Google. Founding/former editor of @Lifehacker. Photo by @billwadman.
226,693 followers |

Maria Popova

Interestingness hunter-gatherer obsessed with combinatorial creativity. Editor of @brainpickings & @explorer. Bylines for @WiredUK & @TheAtlantic. MIT Fellow.
185,512 followers |

Phil Plait

Astronomer, author, skeptic, father, punster.
179,263 followers |

Spirit and Oppy

Roaming the Red Planet on six wheels since Jan 2004. The official mission Twitter of the Spirit and Opportunity rovers.
152,798 followers |

USA TODAY Health

Latest news on health, science, fitness, food, parenting, and relationships from USATODAY.com.
131,651 followers |

Ian Lawton

Spiritual teacher of inner wisdom, divine love, deeper consciousness, oneness, peace, abundance.
106,938 followers |

PZ Myers

Godless liberal biologist
104,176 followers |

Curiosity Rover

NASA's next mission to Mars. I'm currently en route to the Red Planet. Arrival anticipated Aug. 5, 2012.
101,381 followers |

Richard Wiseman

Personal twitter account of psychologist, author and magician Richard Wiseman.
100,803 followers |

alexismadrigal

Senior editor, @TheAtlantic. Author of Powering the Dream. @WIRED alum. Married to @sarahrich.
94,329 followers |

Michael O'Loughlin

We produce the Pacific Northwest's largest sustainable lifestyle festival - Better Living Show. We do Green Events #2012BLS
78,681 followers |

Chris Anderson

Wired EIC, Long Tail, FREE, DIY Drones, 3D Robotics, GeekDad, etc. (five kids in there, too)
78,563 followers |

inhabitat

good design will save the world!
64,274 followers |

Alternative Energy

Nature loving, alternative NRG converted, green invested, loving husband & father. http://LittleJobShop.com Dedicated to saving you time, energy & money!
60,761 followers |

Matthew Sullivan

Founder/CEO of Carbon Advice Group Plc - watch our video! http://bit.ly/5HRfEo . Working to address climate change. We're at www.carbonadvicegroup.com
55,407 followers |

Harry McCracken

TIME technology scribe. Technologizer founder. Boy journalist. Bon vivant.
46,184 followers |

Rory Cellan-Jones

The BBC's technology correspondent. This is my personal profile - if you don't like the dog etc go to @BBCRoryCJ
45,903 followers |

Bill Romanos

Science, technology, space, intelligence, philosophy, writing, book collecting and reading, etc. Attorney.
41,593 followers |

Bob Richards

Space entrepreneur. Orphan of Apollo. A Founder of the International Space University, Singularity University, SEDS, Odyssey Moon & Moon Express (CEO).
38,093 followers |

Rafe Needleman

CNET editor, startup reviewer, consumer advocate.
36,875 followers |

Andy Revkin

Pursuing progress on a finite planet on http://j.mp/dotEARTH and at Pace U. The rest? Family, friends, living, music: http://j.mp/unclewade
35,409 followers |

Charles Arthur

The Guardian's Technology editor. Written a book on Apple, Google, Microsoft. Like: free data, transparency, social networks, etc. Opinions mine, but do borrow.
35,330 followers |

Ina Fried

Senior Editor at All Things Digital, covering mobile stuff, author of the Mobilized blog and huge softball, hockey, basketball fan.
30,568 followers |

Chris Ingham Brooke

For environmentalists who don't take themselves too seriously
29,739 followers |

Murray Newlands

Scrawler & vlogger, social media events & consultancy
28,954 followers |

Caroline McCarthy

Writer, runner, reader, explorer. I tell stories about new ways to connect at Google+. All tweets are mine (until the robots take over).
28,903 followers |

Fredric (aka Rick)

Vayu Founder, yoga inspired athletic wear. Vegan. Sustainability. Spirituality. Social Media. Internet Marketer. Blogger. Entrepreneur.
28,697 followers |

Hugh Byrne

Sustainability, social media, this and that for GreenBiz.com
28,523 followers |

Tim Bradshaw

I'm digital media correspondent at the Financial Times, covering startups & all things internet. Views here = mine, not FT's. Retweets ≠ endorsements.
27,639 followers |

Gerri L Elder 

Web content producer, editor, social media strategist and most importantly, mom.
27,260 followers |

ecorazzi

Good Gossip for people who love celebrities and pop culture, as well as the planet, people, and animals. Love food? @ecorazzieats Love causes? @microist
26,045 followers |

Rhodri Marsden

Not a wife, or mother. I write for The Independent, I play in Scritti Politti. Used to be moderately funny once. Alas no longer the case. Unfollow.
25,815 followers |

Dan Tefft

Founder and President of TreeBanking, Tweeter of the TRILLION $$$ Business of Climate Change Mitigation, Adaptation and #ProfitableSustainability
25,087 followers |

Jessica Vascellaro

Senior Tech Reporter for WSJ in San Francisco. I cover Apple, anything with the word app and other tech trends. I write The Valley column for the paper.
24,973 followers |

Alan Rosenblatt

Taught 1st Internet Politics college course in '95. Webcasted 2000 DNC/RNC Conventions. Social Advocacy Strategist, professor, & pioneer. @CAPaction. Opins own.
24,651 followers |

Katie Boehret

As a WSJ Reporter, I write a weekly technology column that's published every Wednesday. Find it in the paper, at WSJ.com, or at AllThingsD.com.
24,433 followers |

Rebecca Skloot

Author of NYTimes Bestselling book THE IMMORTAL LIFE OF HENRIETTA LACKS (aka #HeLa), soon an Oprah/Alan Ball/HBO film. Writes for NYTMag, O Mag. Animal person.
23,617 followers |

Dr. Jennifer Ashton

MD,Ob-Gyn, women's health expert, co-host of ABC's The Revolution, author of Your Body Beautiful and The Body Scoop for Girls,triathlete, hockey fan, mother.
22,560 followers |

Bradley Bowden

Happily married 2 @Truthoughts. I am the Co-founder and CEO of @GreenShield - I ♥ God, social media, having fun & making money all while living green
22,524 followers |

RayBeckerman

Law, social justice, nature, human & animal rights, the arts, ecology. Progressive. I try to lend my voice to the voiceless. http://is.gd/cNFKN
22,385 followers |

John Siracusa

21,949 followers |

Leslie Carothers

Love furniture + design. CEO of http://tkpartnership.com- a social media agency for the furniture and interior design industry. Founder of #GetPublished chat
21,741 followers |

SmartPlanet

Insight and ideas that impact your world. Cities. Design. Energy. Green. Innovation. Health. Science. Tech. Sustainability. Transportation. (From CBS.)
21,687 followers |

Dr. Mark Drapeau

Microsoft guy creating things for innovators everywhere. Edit @Publicyte, produce @Geek2Chic, co-founded @Hamstrong, advise @StartupDC, help @NFTE.
21,679 followers |

Erik Hersman

Where Africa and technology collide... Co-founder of Ushahidi, iHub Nairobi and AfriGadget. Senior TED and PopTech Fellow.
21,444 followers |

Farhad Manjoo

I write for Slate, Fast Company, and the NYT.
20,704 followers |

David Roberts

Seattleite transplanted from Tennessee; now blogging for Grist about energy politics. Climate hawk, deficit dove.
20,603 followers |

David Blankenship

Wind Energy Investor, Stocks, Bonds, Renewable Technology, Green Investments, Buisnessman, avid reader and internet surfer.
19,967 followers |

Jack Schofield

Tech journo who covered IT for the Guardian (1983-2010), the Jack in Ask Jack, and a jackdaw who tweets fun links about photography, Lego, advertising, art etc
19,906 followers |

briankrebs

computer, internet security journalist, writes about cyber crime. wrote for The Washington Post '95-'09
19,194 followers |

Andrew Keen

The Anti Christ of Silicon Valley
18,944 followers |

Tara Parker-Pope

New York Times Well blogger, author, busy mom, lapsed runner and pack leader of four ill-behaved small dogs.
18,795 followers |

John Paczkowski

Deputy Managing Editor, All Things Digital. Former author of Good Morning Silicon Valley.
18,116 followers |

DeeAnna Nagel

Co-Founder of Online Therapy Institute, Online Coach Institute and TILT Magazine; Psychotherapist and Coach at JerseyShoreTherapy.com
17,963 followers |

Danielle Brigida

I work for the National Wildlife Federation (@NWF). I’m looking to learn & laugh. Interests include: nature animals nonprofits social media technology and life!
17,864 followers |

Adam Pash

Pash like cash. Editor-in-Chief of Lifehacker.
17,798 followers |

EWG Toxics Team

We use the power of information to protect public health and the environment.
17,472 followers |

David Bradley

Science news, views, interviews and tech talk from Science Writer David Bradley based in Cambridge, England, UK. First solo book coming soon - Deceived Wisdom.
17,231 followers |

BenKuchera

I'm the guy in charge of gaming coverage at Penny Arcade. Yes, that's a thing now.
17,007 followers |

Jose Antonio Vargas

An undocumented American. Founder of @defineamerican. A walking uncomfortable conversation. Subscribe on Facebook: http://www.facebook.com/joseiswriting
16,510 followers |

Liz Szabo

I report on medical news for USA TODAY, covering cancer, heart disease, children's health, kids/parenting and some environmental health (BPA, etc.)
16,331 followers |

brian lam

I love the ocean, California, green juice, milkshakes, my dogs, surfing. ex-gizmodo, wired contrib. http://thewirecutter.com. http://thescuttlefish.com
15,496 followers |

Tim Hurst

Writer, editor, & social media wrangler. I like my tweets with energy, environment, politics, music & mountains. http://ecopolitology.org
15,412 followers |

Stephen Shankland

Author of Deep Tech blog at CNET News. I cover browsers, Web programming, computing technology, photography, and more.
15,391 followers |

Tom Savage

Social entrepreneur, simplifier... currently founder of 3Desk
15,283 followers |

Matthew Herper

Forbes reporter covering science and medicine
15,127 followers |

Aurametrix, Inc.

Connect the dots to better health! Aurametrix helps you identify the subtle cause-effect relationships that contribute to how you feel--any time, any day.
15,048 followers |

Steve Elliott

Writer: Toke of the Town. The Little Black Book of Marijuana: The Essential Guide to the World of Cannabis. Toke Signals. Incredible Medibles. Reality Catcher.
14,977 followers |

Bora Zivkovic

Blogs Editor at Scientific American. Visiting Scholar at NYU school of journalism. Organizer of ScienceOnline. My tweets are my own.
13,911 followers |

Bertalan Meskó, MD

Medical doctor, founder of Webicina.com, speaker, blogger, university lecturer, health 2.0 consultant, Wikipedia administrator doing PhD in genomics.
13,672 followers |

Jacqui Cheng

Senior Apple Editor at Ars Technica. Also office therapist, sometimes social organizer, and Chief Cat Herder. A student of humanity and technology.
13,528 followers |

RMSorg

I am a Christian, a wife, a mother and a business owner. I love organic products and exercising is My time. I love living a full life! How can I help You?
13,501 followers |

Joanne Manaster

Biology lecturer, video science book reviewer, co-host of @sciamblogs- PsiVid. #STS135 #NASAtweetup alum, former international model who LOVES science!
13,356 followers |

Saul Hansell

Building a visual news startup as an entrepreneur in residence at Betaworks. See http://SaulHansell.com
13,224 followers |

Brian X. Chen

New York Times technology reporter / Author of Always On: How the iPhone Unlocked the Anything-Anytime-Anywhere Future (Da Capo)
13,191 followers |

Erin Ely

Organic Fanatic * Strategic Optimist * Community/Political Activist * Bioneers Fan * Your Source for Miessence Certified Organic Products * Miessence Rep
12,739 followers |

annabel bentley

doctor in london,likes beaches, patient-orientated evidence, informed decision making &health2.0 Blogs Onmedica.com, BMJ http://bit.ly/bwyoAx [personal tweets]
12,616 followers |

Happy Herbivore

Author of The Happy Herbivore Cookbook & Everyday Happy Herbivore. I create quick-n-easy, no fuss, low fat recipes using wholesome everyday ingredients.
12,615 followers |

Susan Critelli

Unabashedly Christian, Conservative, 20 yr veteran Work-At-Home School Mom, Green, Blogger, Social Media Enthusiast
12,487 followers |

Sean Carroll

Scientist, writer, truth vigilante.
12,368 followers |

Ecosaveology

auto posts by facebook.com/Ecosaveology and SaveBees
12,348 followers |

Liz McLellan

owner hyperlocavore.com - a yardsharing community. Let's grow together! Foodie, gardener, crafty nerd and hot-headed ginger. http://ow.ly/acvWq
12,180 followers |

Bobbie Johnson

Gadabout, troublemaker, cyborg. Editor, @GigaOM Europe, co-founder @readMATTER, proprietor of @IfYouOnly. Stories? bobbie@gigaom.com, phone +44 (0) 758 4043330
12,127 followers |

Kelly Drennan

ECO fashion evangelist, PR & Events Expert, Non Profit Founder & ED of @FTAorg. Tweet energy, h2o, toxins, CSR, fairtrade. Writer Speaker, Green Mom, Yogi
12,020 followers |

Katie Fehrenbacher

Greentech Editor, Senior Writer & Features Editor, GigaOM
11,980 followers |

Larry Dignan

Editor in Chief, ZDNet, Smart Planet; Editorial Director, TechRepublic
11,951 followers |

Jaymi Heimbuch

Green Technology Editor and writer @TreeHugger. Environmentalist and photography enthusiast.
11,875 followers |

Andrew D. Nystrom

Positively disruptive leader @RedBull Media House. Dad +2. Mobile. Tech. Innovation. Geek. Family. Adventure. Travel. What's next? Opinions: 110% me. And...You?
11,810 followers |

Ivan Oransky

Executive editor, Reuters Health; journalism adjunct, NYU; blogger, Embargo Watch and Retraction Watch; AHCJ treasurer; Zinfandel drinker.
11,468 followers |

Ken Fisher

Founder & Editor-in-Chief at Ars Technica, PhD candidate at Harvard, man of impeccable timing
11,302 followers |

Jennifer Taggart

Attorney regulatory compliance & labeling specialist consumer toy products safety F963 CPSA CPSIA Prop 65 XRF Mom Blogger Author Green
11,257 followers |

David Quilty

Founder of thegoodhuman.com. Social activist, greenie, writer, social media addict, forkoverknifer. You'll find me outdoors trying to avoid looking at my phone.
11,199 followers |

Olivia Zaleski

new media reporter . . . focused on green tech
11,045 followers |

Taylor Buley

Once wrote news & now I write news software. Work: PHP, JavaScript and journalism; Otherwise: Coding reporting tools & trying to get back into shape for rugby.
11,000 followers |

The EVcast Hosts

We are the hosts of the EVcast, Podcast on Electric Cars and other Electric Vehicles. Join us on iTunes or at EVcast.com!
10,825 followers |

Todd Woody

Environment Editor, Forbes Magazine. @forbesgreen. Tweeting about the environment, green tech and, occasionally, surfing.
10,808 followers |

Maryanne Conlin

Award Winning Digital Strategist, CPG Trained Marketer, Foodie, MediaPost Contributor, Green Mom
10,801 followers |

Chris Nuttall

Financial Times Technology correspondent - my views are my own and should not be interpreted as reflecting those of the FT.
10,595 followers |

Dylan Tweney

Executive editor of VentureBeat.com. Publisher of tinywords.com. The motto of my family is Go and find out.
10,573 followers |

matt buchanan

not very
10,512 followers |

Jason Chen

Played for Gizmodo, Lifehacker. Now starting StoryBundle. Dated a Kardashian. Wearing #28.
10,511 followers |

Priya Ganapati

Deputy mobile editor at The Wall Street Journal. I work on the WSJ's mobile and tablet apps. Former Wired.com gadget reporter.
10,390 followers |

Bob Metcalfe

Bob Metcalfe is UTAustin Prof of Innovation, Murchison Fellow of Free Enterprise; Polaris Partner; MIT Trustee. Past: Harvard, PARC, Stanford, 3Com, InfoWorld.
10,377 followers |

Greenraising

Helping schools and non-profits raise funds while raising environmental awareness. 100% guilt free, green fundraising!
10,343 followers |

Mark Milian

Bloomberg tech writer
10,165 followers |

Vinny Arora

Internal medicine doc advising students & residents about medical careers. Interested in ways to improve medical education and patient care.
10,110 followers |

drval

MD founder of Better Health, LLC: a network of 130 medical bloggers, partnered with the CDC, ACP, Harvard Health Pubs & more. Smart health commentary.
10,104 followers |

Jonathan Eisen

Biologist & blogger w/ #evolution #microbes & #genomes focus; #openaccess & @PLoSBiology advocate; @Harvard @Stanford alum; prankster; cyclist & Prof. @UCDavis
10,094 followers |

Anthony Palfrey

Founder member The Genius Circle and work for the environment. Inventor, writer and entrepenuer
10,094 followers |

Nicholas Thompson

Editor of NewYorker.com. Co-founder of The Atavist.
9,654 followers |

Shea Gunther

I'm a Mainer, a dad, a blogger for MNN, a founder of #EcoMonday, and ultimate frisbee player. I'm back at school studying environmental and computer science.
9,588 followers |

Mo Costandi

Neuroscientist turned writer. Bibliophile, film buff, funk fanatic, amateur photographer
9,572 followers |

Julia Angwin

Journalist
9,512 followers |

Andrew Winston

Globally recognized consultant-speaker-sustainability evangelist. Author of Green to Gold and Green Recovery. Tweeting the greening of business and the world.
9,388 followers |

Max Gladwell

Max Gladwell is the story of SoLoMo and green living. See also @MomentFeed and @reedcontent
9,353 followers |

Andrew Mager ♫

Hacker Advocate at @Spotify. Exploding the NYC tech scene.
9,264 followers |

Chris Baskind

Founding editor of Lighter Footstep (now part of Mother Nature Network/MNN). Carfree advocate, coffee drinker, and sometimes geek.
9,223 followers |

maggie_reardon

CNET reporter
9,200 followers |

Josh Lowensohn

Apple reporter for CNET News, and frequent photographer. You'll see my latest from both on here. I also happen not to be Josh Groban.
9,143 followers |

Ves Dimov, M.D.

Assistant Professor of Medicine and Pediatrics at University of Chicago, Allergist/Immunologist, Internist. Former NEJM Advisory Panel Member
9,113 followers |

Lynn Anne Miller

Still having fun with Twitter, after all these years. CEO @4GreenPs; Founder @GreenMoms. Community mgmt 4 clients incl @ChileOliveOil & @KidsLiveWell
9,083 followers |

Mike Huckman

SVP,Dir. of Media Strategy,MSL New York. Just tryin' to avoid the #prfail. Fmr. CNBC Pharmaceuticals Reporter. Spin instructor. Dog owner. USC Trojan. Fight On!
9,055 followers |

Noah Gray

Senior editor at Nature. I read about neuroscience. These thoughts are mine alone since nobody else will take responsibility.
8,955 followers |

Jennae Petersen

A mommy, blogger, graphic designer & decorator from the Caribbean. An eco diva trying to change the world through design. My work: http://hibiscuscreative.com
8,922 followers |

Whitney Lauritsen

Tips on how to improve the health of your body & planet. Vegan recipes (gluten & soy free, low in sugar & oil), interviews, & reviews via videos & photography
8,720 followers |

Chris Kohler

I edit Game|Life at Wired.com. Personal Twitter account.
8,659 followers |

Kevin Grandia

Director of Online Strategy, Greenpeace USA
8,524 followers |

Thomas Goetz

Executive editor at Wired magazine, author of The Decision Tree, and a failed speedskater.
8,499 followers |

Brian Krueger, PhD

Science news site and Blog Network masquerading as a social network for the sciences. Enjoy the news and our science rants.
8,498 followers |

Dr. Paula Kahumbu

Champion of endangered species, ecologist, conservationist, childrens book author, CEO of WildlifeDirect Inc
8,467 followers |

Chris Brown

General Manager, North America for Asia Cleantech Gateway. Mandarin linguist, China solar consultant, analyst. Working to build East-West cleantech ties.
8,339 followers |

Bradley C Hughes

An Entregreeneur is one who achieves abundance through practising ethical, ecologically friendly, sustainable enterprise with integrity and goodwill toward all.
8,333 followers |

Veronica McGregor

NASA-JPL news/social media mgr. Also tweeting as @NASAJPL, @MarsCuriosity & @AsteroidWatch. Creator of the 1st #NASATweetup. Opinions here are my own.
8,329 followers |

David Sarno

L.A. Times tech reporter
8,119 followers |

Michael G.R.

I work for the Discovery Channel as a Science/Tech/Transportation writer for TreeHugger and Planet Green.
8,036 followers |

David Gallagher

NY Times deputy tech editor. Expect me.
7,892 followers |

Jesus Diaz

Jam. Monkeys. Gizmodo. Lego. More jam perhaps.
7,888 followers |

Elinor Mills

CNET News.com Internet security and privacy reporter with a zest for life.
7,814 followers |

steve sternberg

Deputy Health Rankings Editor at U.S. News & World Report.
7,779 followers |

Vindu Goel

Editor overseeing coverage of energy, food/ag business and labor issues at The New York Times
7,644 followers |

Summer Rayne Oakes

I run barefoot and collect bugs. In my spare time I'm an undercover model working on environmental programs worldwide.
7,599 followers |

Elaine Hsieh

Global business strategist and former green building geek. Focused on energy, sustainability, and innovation.
7,575 followers |

Daniel Terdiman

CNET News senior writer. I cover startups and Silicon Valley culture. Also the geek and tech culture beats: airplanes, rockets, Lego. Fun stuff! Drop me a line.
7,514 followers |

Dr. Ian O'Neill

Discovery News Space Producer. Recovering British solar physicist. Enjoys good beer, prefers tea. Toast & butter advocate. Hairy Atheist. 2012 doomsday debunker
7,487 followers |

Sean Fallon

Nerd Approved is all about crazy, one-of-a-kind gadgetry. Check out FashionablyGeek.com for cutting edge clothing and gear.
7,475 followers |

Daniel Roth

Daniel Roth is executive editor of LinkedIn. Former Fortune.com editor, Wired writer, and Fortune writer and ed. Brooklynianer. Bio: http://linkd.in/qECr5R
7,295 followers |

RitaRubin

I'm a contributing writer for @msnbc_health, mom of two girls, published short story writer (4 & counting!) & latent thespian.
7,257 followers |

Martin LaMonica

Martin LaMonica is a journalist who covers technology, science and business. lastnamefirstname@gmail.com.
7,237 followers |

Ecochickie

Starre Vartan runs eco-chick.com & authored The Eco Chick Guide to Life. A problogger and eco expert, she's been featured in the NYTimes, Elle & Whole Living.
7,236 followers |

Wendy Gabriel

Living Green and trying my best to figure it all out...being a wife, mother and human being. Also writes for 1800Recycling.com.
7,222 followers |

Ryan Paul

I'm the open source editor at Ars Technica.
7,087 followers |

Wilson Rothman

Tech & science editor @ msnbc.com; husband, father, semi-successful kitchen warrior
7,083 followers |

Karen James

Biologist, outdoorswoman, aspiring explorer, space enthusiast, evolution booster, atheist, alpine pilgrim. The mind is a chaos of delight.—Charles Darwin
7,073 followers |

Richard G. Lanzara

Entrepreneurial Scientist and Pharmacologist interested in how our senses and receptors work and everything else that follows from that...
7,061 followers |

Greenster

Modern eco-culture chronicled by @julienfruchier and the tribe at http://www.greenster.com.
7,033 followers |

Julie Deardorff

Health and fitness writer/Chicago Tribune. Exercise fanatic. Green living, nutrition, environment, child health. I'm a mom, yogi, runner, Ironman triathlete.
6,946 followers |

Dave Lee

Technology reporter for the BBC. Loves the news like Ron Burgundy loves San Diego. Story? dave.lee@bbc.co.uk
6,932 followers |

Paul Smith

Sustainable/Green Biz Consultant. Global trend tracker for the greater good. Digital PR. Blogger for @TriplePundit. Ghost Writer for ____. Cyclist.
6,926 followers |

Andrew Nusca

CBS @SmartPlanet & @ZDNet editor by day, The Editorialiste media critic by night. (editorialiste.blogspot.com)
6,892 followers |

Siel Ju

Writer in SoCal
6,864 followers |

Ben Hirschler

Pharma, health and science correspondent for Reuters in London. Any opinions are mine.
6,756 followers |

Joerg Heber

Senior Editor of the science magazine @NatureMaterials, blogger and freelance science writer. Views are my own.
6,737 followers |

MuseSpring

News and updates from the MuseSpring.com team.
6,719 followers |

Graham Hill

TreeHugger, WeAreHappyToServeYou.com founder, Sitewerks Co-Founder, Discovery's Planet Green Exec and Talent.
6,689 followers |

Deborah Berebichez

A physicist with a deep passion for communicating science to the masses. Secondary life as philosopher and actor. Made in Mexico.
6,585 followers |

ScottEdwardAnderson

Founder TheGreenSkeptic & CleantechAllianceMid-Atlantic. Poet, chef & FOXBiz/WSJ.com pundit. Global cleantech marketing director @ Ernst&Young. Opinions mine.
6,585 followers |

Evan Hansen

Wired.com Editor in Chief
6,581 followers |

Jonathon Colman

Agile SEO, Inbound Marketing at @REI. UW Grad Student. Speaker at #SMX #MozCon #AdTech #eTail. Webby Award Winner. Married to @mhuhta, owner of #bestdogever
6,573 followers |

Nathan A. Winters

Upcoming author | Restorative farming | Farmer @rellybubfarm | Former digital media evangelist turned simple/ rural living advocate | Mean cook | Optimistic
6,544 followers |

Mark McClusky

Wired mag Special Projects Editor, cyclist, cook, husband, and dad.
6,410 followers |

Gareth_Mitchell

Presenter, BBC Click Radio. Also, a lecturer in Science Communication at Imperial College London. Often slow to update Twitter profile. Fancy a pint?
6,344 followers |

Joanna Yarrow

Explorer of 21st-century sustainable living. Writer, broadcaster, consultant, director of @wildernesswood & founder of @beyondgreenuk.
6,292 followers |

Greg Sandoval

Never had a bad day in my life. Cover digital media for CNET. I'm also a pitiless, soul-eating Monopoly player. You play me, God help you.
6,254 followers |

Eric Berger

Science reporter and blogger for the Houston Chronicle. Cover science from nanometers to parsecs. Love my wife and kids. Cycling. And ice cream.
6,197 followers |

Beth Buczynski

Freelance writer, editor, and green brand advocate. Passionate about coworking & collaborative consumption. Skier. Tea lover. Zombie movie watcher.
6,136 followers |

joemfbrown

Gizmodo editor-in-chief, fly fisherman, motorhead. I love animals—medium rare.
6,089 followers |

Erica Ogg

Things I like: history, baseball, mac & cheese. Things I do: Write for GigaOM, travel, eat, laugh.
6,060 followers |

Colin Beavan

I'm the author of No Impact Man. I'm a writer, activist, speaker and now candidate for Congress!
5,869 followers |

Daniel MacArthur

I work in high-throughput human genomics, and blog about the genetic testing industry
5,802 followers |

Edzard Ernst

CAM researcher, co-author of 'Trick or Treatment: alternative medicine on trial'; apparently i called Prince Charles a snake-oil salesman
5,697 followers |

John C Abell

Columnist, Reuters MediaFile
5,663 followers |

Carbon Outreach

Traditional & Digital Marketing for Ethical Business | Our 200+ Page Facebook Guide http://amzn.to/vz3dSZ
5,630 followers |

Andy Greenberg

I'm a tech reporter for Forbes.
5,596 followers |

Tom

An occasional blogger and patron of politics & news. I also enjoy ample doses of dry humor, technology, philosophy & science.
5,572 followers |

Erik Malinowski

Night editor: @Deadspin. Writer: @Wired, @Macworld, @Salon. On the side: @longshotmag, @PopUpMag. (erik@deadspin.com)
5,526 followers |

Karl Burkart

#climate blogging with @tcktcktck and @mnn.
5,497 followers |

E. A. Bonnici BSc BA

Hi I'm Eric. I like investigating renewable energy and living green. Sometimes what I uncover will shock you. I share it all w/ you on my blog.
5,412 followers |

Betsy Mason

Science editor for Wired.com, geologist, beer snob, calm assertive pack leader.
5,402 followers |

Adam Nantel

5,397 followers |

Lucy Rogers

Fellow Institution of Mechanical Engineers, Fellow Royal Astronomical Society, Author. Saving the world from space debris.
5,393 followers |

Sheila

I’m dedicated to save the Earth, passionate environmentalist, human @ animal rights activists.Vegan
5,329 followers |

Elizabeth Woyke

Business/technology reporter, East Coaster, 한식 enthusiast.
5,303 followers |

britesprite

Leading Sustainability Journalist & Writer, including for The Guardian. Personal tweets on #green #business #humanrights #csr #sri and bundles of other stuff.
5,192 followers |

Hillary Newman

Community Manager at @GOOD. LA native. Travelista.
5,068 followers |

Lloyd Alter

Treehugger, cured architect, writer
5,062 followers |

Ian Douglas

Telegraph beekeeping diarist, science and technology writer. Other things too, but let's keep a little mystery for now.
5,055 followers |

Emily Gertz

Journalist. Co-author w/@PatrickDiJusto of @OReilly's Environmental Monitoring with Arduino. Bylines: @TPM, @OnEarthMag, @Ecomagination ... www.emilygertz.com
4,947 followers |

EcoOfficeGals

Green Virtual Assistant & Eco-Friendly Options for Small Biz. Grow Green with me!
4,943 followers |

Ted

In search of great solar technology investments
4,920 followers |

Jill Fehrenbacher

publisher/editor of Inhabitat.com, green designer and unrepentant idealist
4,917 followers |

GeekDad Ken

Grand Nagus of GeekDad.com, Publisher of GeekMom.com. Author of the GeekDad books. Husband, father, Civil Engineer and sleep deprived.
4,894 followers |

David Biello

News is what somebody somewhere wants to suppress; all the rest is advertising: Lord Northcliffe Me: Environment & Energy editor @sciam. All views my own
4,850 followers |

Daniel Fischer

All things astronomy and space (and then some) - in tiny bits and pieces but mostly with links to more ... :-)
4,821 followers |

jeffersongraham

Tech reporter for USA TODAY and host/producer of USA TODAY's Talking Tech and Talking Your Tech web video shows.
4,813 followers |

chrislintott

Astronomer, zookeeper and journalist, based at University of Oxford.
4,784 followers |

nancy miller

Just joined @LA_mag as Deputy Editor. Formerly @fastcompany @Wired @EW. Culture and music musings found here. Ideas? nancy.lamag@gmail.com
4,764 followers |

Chris Gunter

Geneticist; editor; writer; nonprofit strategist. Director of Research Affairs, HudsonAlpha Institute for Biotechnology. Owner, Girlscientist Consulting.
4,709 followers |

Robeen

Easy, Actionable, Budget Conscious tweets for Green Living & Decreasing Toxins. Soc Media consultant, avid traveler-90 countries, yoga teacher, mom to twin boys
4,707 followers |

Adam Frucci

I run Splitsider and perform at UCB.
4,699 followers |

Kristin Johnson

I'm the Senior Manager of Online Integration for the National Wildlife Federation. I also tweet for @NWF.
4,672 followers |

Brandon Keim

Eukaryote. Treehugger. Science journalist. Associate editor @wiredscience
4,655 followers |

Chris Foresman

Contributing Writer at Ars Technica, tech nerd, Apple nerd, photography and design nerd, vegetarian cooking nerd, karaoke nerd.
4,605 followers |

Mark Archibald

Saint Mary's University Alumni (Marketing Major). Photographer, Techie, Environmental informer.
4,570 followers |

Stephanie N. Mehta

Fortune Executive Editor overseeing technology, international and policy coverage.
4,508 followers |

Sam Diaz

Around the clock tech blogger - a long-time career newspaper guy who still writes to inform and entertain but posts anywhere he can, including Twitter.
4,359 followers |

Brian Caulfield

Forbes tech writer. This is a personal account: some of my messages here may not make sense.
4,316 followers |

Heather Clancy

Technophile, environmentalist and small-business champion. Covers transformative technology, small-biz tech, CSR for @ZDNet @SmartPlanet @GreenBiz.
4,309 followers |

Marcia Stepanek

Journalist, author, NYU faculty, new tech scribe, PopTech and SSIR blogger, founding Editor-in-Chief, Contribute Media http://about.me/marciastepanek
4,307 followers |

Astronomy Blog *☁⋆*

Looking upwards. Mostly from the UK. Views are mine (should go without saying). Government warning: may (or may not) contain jokes.
4,294 followers |

Anne Fulmer

Interested in social networking to spread my passion to create a wealth of Health for all http://AHealthyWealthblog.com AWealthofGreenHealth.com
4,261 followers |

Cliff Pickover

Dr. Cliff Pickover, author of 40+ books, science, science fiction, technology, strange reality, futurism, innovation, mathematics, creativity, publishing
4,156 followers |

Bruce Japsen

Health care reporter writing and explaining insurance coverage, drugs, doctors, hospitals and Obama's policies
4,114 followers |

Sandra

Mother, wife, owner of an online eco-boutique specializing in handmade in the USA eco friendly items...
4,092 followers |

Vijay

…an algorithmic interpretation machine ~ i.e., a radiologist ~ peering into the internet…
4,072 followers |

Kim Painter

I'm a veteran USA Today health writer. Check out my morning health updates at our Healthy Perspective blog.
4,063 followers |

Sara Rampersaud

President of Eco Assist Consulting, Founder YourGreenReview.com, Change Agent, Eco-preneur
4,010 followers |

Bug Girl

Entomology. Nerdery. Gardening. Science.
3,958 followers |

jonfildes

Editor of bbc.com/future. Always looking for good freelancers with good ideas...
3,926 followers |

AstroSpaceNow.com

We obsessively track breaking news and interesting content about astronomy and space exploration over the blogosphere and Twitter so you don't have to.
3,876 followers |

John Timmer

Chief science wrangler for Ars Technica.
3,868 followers |

lkahney

Editor of Cultofmac.com, author of Inside Steve's Brain
3,863 followers |

GreenSmart

Green, sustainable, eco-friendly, non-toxic bags & cases. All our fun bags are made of recycled PET or neogreene, our eco-friendlier version of neoprene.
3,823 followers |

Dave Burdick

Features editor & digital so-and-so: @dailycamera @timescall. I make internet and newspapers and beer. Tweets: news, environment, media, Colorado and fun.
3,790 followers |

Stuart Clark

Astronomer, journalist, author and speaker. Author of The Sun Kings and The Sky's Dark Labyrinth trilogy, the history of astronomy – dramatised!
3,777 followers |

Chris Tackett

When I'm not working as Social Media Editor for @TreeHugger, I enjoy bicycling, taking photographs, reading and learning to keep my garden alive.
3,769 followers |

Joseph B. Treaster

Editor, TheMiamiPlanet.org and OneWater.org, Knight Chair University of Miami, NYTimes contributor, blogger, former Times staffer
3,764 followers |

Jason Robertshaw

Science + ocean info and stuff. Professional marine science geek in Sarasota, FL. 
3,715 followers |

Danny Dumas

Technology Editor at The @Daily. Former editor @Wired. Nuts and gum together at last.
3,653 followers |

claudineb

3,635 followers |

George Hoberg

environmental/natural resource policy prof at UBC. Climate Hawk. Focus on climate action, energy policy, biodiversity, forest policy. In BC, Canada, US, beyond
3,612 followers |

thecitizen

Dedicated to realigning our society with nature through business methods & citizen activism.
3,612 followers |

Sandy Guerriere

Green Eco Communities - Sustainability of the Planet begins at home. ~ Become the change you want to see in the world.
3,610 followers |

Irene Klotz

Journalist specializing in NASA, space science, commercial space. Media consultant.
3,601 followers |

Michael Calore

products editor at @wired dot com. a little fermented curd will do the trick
3,576 followers |

muradahmed

Technology Reporter for The Times (UK). I write news and analysis about the net, social media, consumer tech. I like cricket. And other things.
3,559 followers |

Jim Hopkinson

Blogger, podcaster, author, speaker, online marketer, gadget guy, social media maven, sports fan, runner, city dweller.
3,554 followers |

charles cooper

3,551 followers |

Brian Mossop

Community Editor for @wired. Science writer. Former neuroscientist.
3,543 followers |

Dave Munger

I'm a writer and editor who is cofounder of ScienceSeeker.org
3,526 followers |

Mat McDermott

Business & Energy Editor for TreeHugger.com
3,434 followers |

John Pavlus

Writer × filmmaker. I make stuff that makes sense of other stuff. Including but not limited to: science, tech, design, math, music
3,428 followers |

willie brent 白維

blogger (www.mrcleantech.com) + marketer (weber shandwick cleantech PR practice), 20 yrs in china, piano player in training
3,421 followers |

Vincent Racaniello

virus guru, professor, TWiV.tv host
3,415 followers |

Colin Stuart

Freelance science communicator, writer & broadcaster. Freelance astronomer for Royal Observatory, Greenwich (views mine).
3,410 followers |

Doug Bancorn

educating people on the awesomeness of Bamboo fabric, and just having fun! Come chat with us.
3,407 followers |

Kenwardjr

Reporter, The Charleston Gazette, covering coal, the environment and workplace safety.
3,361 followers |

Chris Baker

Senior Editor at Wired
3,348 followers |

Ecobold

Buy and sell natural, healthy, organic and green products. Want safer skincare & home products?! Welcome to the club!
3,345 followers |

Tara C. Smith

Associate Professor, lab rat (microbiologist/infectious disease epidemiologist) and occasional blogger, full-time nerd
3,342 followers |

John Herrman

Deputy Tech Editor, @BuzzFeed john.herrman@buzzfeed.com
3,340 followers |

Jon Stokes

Wired editor. Ars Technica founder. Author. Baconist.
3,304 followers |

Michael Woods

News from the American Chemical Society, the world's largest scientific society
3,300 followers |

Katherine Goldstein

Innovations editor, focusing on social media and traffic initiatives for Slate.com. I also write essays sometimes.
3,225 followers |

Dr. Isis

Dr. Isis is a physiologist and science blogger. She writes about being a woman in academia, science, and shoes.
3,221 followers |

Garrett Lisi

surfer-physicist (multiclass)
3,206 followers |

Marc Alt

Design, Ecology, Technology. http://marcalt.com Founder/Editor of Open Source Cities @Open_Cities
3,202 followers |

Sheila Veronessa

EcoGlamourista: Live Glamorously Green. The latest in sustainable fashion, beauty and lifestyle. Stay tuned for the most stylish buys and really useful tips.
3,182 followers |

Amy Hale

A true nomad by design,a cynical idealist, professional polymath, & recovering dilettante w/ a penchant for killer Cavalli, but mostly just the next adventure.
3,152 followers |

Alison van Diggelen

Lively green news, cleantech commentary, exclusive interviews with Tom Friedman etc http://www.facebook.com/FreshDialogues
3,126 followers |

Alex Wang

Blogging on China's environment/energy challenges; teaching law @ UC Berkeley Law School; former director of NRDC's China Envt'l Law & Governance Project.
3,109 followers |

MomGoesGreen

My journey to becoming more green
3,064 followers |

David Rush

Environmental engineer aiming to promote a sustainable lifestyle.
3,064 followers |

Jon Black MD, MPH

MD/MPH. Ob/Gyn Resident. Photographer. Ultimate Frisbee. Globetrotter. Foodie. Drinkie. Outdoors not Indoors. Global Health. My Tweets Aren't Advice.
3,037 followers |

Bob Finn

Medical and Science Journalist. Assignment Editor for Medscape Medical News
3,022 followers |

Manny Gonot

Dad, blogger, web consultant. Into recycling, environment, green, tech, web 2.0, social media.
3,011 followers |

Christie Nicholson

Web Contributor, Scientific American; podcaster 60-Second Mind; Host/Writer Dirt On Green; Contrib Ed SmartPlanet, Speaker: Banff, SXSW, PopTech, Stony Brook.
2,961 followers |

John McQuaid

Journalist tweeting on the future of news, science, environment, politics, arcana. Forbes blogger. Writing a book on the science of taste.
2,952 followers |

Carol Torgan, Ph.D.

Scientist, strategist, & communicator spanning from lab bench to park bench. Offline: runner, cyclist
2,932 followers |

adam aston

Energy & environment writer. Find my words in GreenBiz, OnEarth, BusinessWeek, NYT, TechnologyReview, FiscalTimes, EIU, enviroYALE. PIT-born HK-bred BKN-based.
2,921 followers |

Rose Braz

Polar Bears, Pika, Penguins and People: We all need an end to global warming! Center for Biological Diversity.
2,918 followers |

CameronNeylon

Open Science, Open Access, and bringing more experimental techniques to the biosciences. I work for the UK STFC but tweets are my personal opinion.
2,894 followers |

Mark Wilson

Founder of @philanthropr. Extremely part-time contributor, Gizmodo.
2,893 followers |

Chris Rowan

Geologist, nomadic postdoc, science blogger. I study plate motions, deforming continents and rock magnetism. I tweet as my inner geo-nerd wills.
2,860 followers |

Josie Garthwaite

Freelance journalist covering science, green energy & transportation. Bylines for @wired, @nytimesgreen, @nytimes, @natgeo, @techreview, others. www.josieg.com
2,833 followers |

Cesar Sanchez

Scientific editor, microbiologist. [Editor científico, microbiólogo] http://bit.ly/TwistedMicrobiology http://bit.ly/MicrobiologyDaily
2,830 followers |

Joe McKendrick

Author & researcher in innovation, information tech trends and markets. Analyst w. Unisphere Research, contributor to CBS interactive, Forbes.
2,824 followers |

dfletcher

State of Utah CTO - interested in eGov, Technology, Innovation
2,811 followers |

carlosrizo

#Founder myhealthcareinnovation.com & #QuantifiedSelf #Toronto, #entrepreneur, #patient, #MD, Co-author Social Media & Quality eBook http://bit.ly/hcsmqi,
2,748 followers |

Jorge Salazar

Science journalist and broadcaster - EarthSky, a clear voice for science
2,747 followers |

Dan Haugen

Freelance journalist covering energy, technology and business topics. I'm also a music lover, Twins fan & all around media addict.
2,739 followers |

Mark Changizi

Author of VISION REVOLUTION and HARNESSED: How Language and Music Mimicked Nature and Transformed Ape to Man. Director of Human Cognition, 2AI
2,717 followers |

Jonathan Hiskes

Curious cat
2,687 followers |

rlbates

Plastic surgeon who quilts, wife, sister, dog lover, blogger
2,681 followers |

Julian

Cleantech start-ups attorney, former policy wonk @amprog and @energy, tweeting about Chinese political economy, energy, environment,innovation, sustainability.
2,665 followers |

Jack Riley

The @Independent and Evening Standard's Head of Digital Audience & Content Development. All tweets personal.
2,662 followers |

Daryl Elliott

Raw vegan. Business guy. Manage investments. Progressive activist. Green. Single.
2,659 followers |

Richard Martyniak

Entomologist, Beekeeper, African Bee (Killer Bee) removal expert,Too Tall. Got questions about Bugs? I can answer them for you!
2,657 followers |

Stacey

work @NASA (*this is not official NASA Twitter*); Space Geek & Political Junkie (R). Also mom of 2 juggling work and play day by day
2,639 followers |

Brendan Ross

¡Viva la red-eye! Views and opinions here do not reflect those of my employer. Whoever that is.
2,616 followers |

Meaghan O'Neill

I wrangle bloggers at TreeHugger, Parentables, and Discovery. Press pitches via email, please.
2,598 followers |

attilacsordas

bioinformatician at the European Bioinformatics Institute, personal proteomics instigator, Cloudera Cert. Hadoop Developer, ex mitochondrial-stem cell biologist
2,588 followers |

Nancy Martini

Artist - My body of work is about environmental issues
2,560 followers |

Matthew Cokeley

I am the Creative Director for Mag+. Formerly known as @PopSciGuy. Let's get to work, Tweeps!
2,545 followers |

Meg

There can be no happiness if the things we believe in are different from the things we do.
2,519 followers |

Hilary Maybaum

Science writer and editor, non-practicing oceanographer, one-time Alvin diver, hiker, kayaker, crossword puzzler, candy eater
2,517 followers |

Gwendolyn Gleason

MADE TO ORDER- Couture Wedding Gowns for the Earth Conscious Eco-Chic Bride! Organic Fabrics:SILKS,LINEN & COTTON, Proud to be in #Passionistas @HuffingtonPost
2,516 followers |

Professor Astronomy

Astronomy researcher at the University of Texas at Austin
2,516 followers |

EMMA GRADY

Style Expert + Award-Winning Fashion Writer / Founder + Editor @PastFashFuture / Fashion Correspondent for Discovery's @TreeHugger
2,515 followers |

genegeek

using PhD in Medical Genetics for teaching at university & outreach opportunities. Encourage thinking over memorization. @sciovan
2,490 followers |

Mike Harvey

PR Man
2,431 followers |

Alasdair Allan

Yet another hacker, pretending to be an astronomer, pretending to be a hacker who has written several books about iOS and Arduino for O'Reilly Media.
2,399 followers |

Mark Mayhem

Espousing the world of Craft styled Micro brewed beer - Aficionado of all styles of Lagers and Ales - Be a part of the New Beer Revolution SAY NO TO MACRO!
2,378 followers |

Bill Chameides

Dr. Bill Chameides, dean of Duke's Nicholas School of the Environment, blogs about science, sustainability, and the environment. (Tweeted by Erica Rowell)
2,366 followers |

Eric Roston

Sustainability Editor, Bloomberg. Author of THE CARBON AGE.
2,350 followers |

Bob Morris

Blogging since 2003 at Politics in the Zeros. The politics of progress; cleantech, the economy, populism, anti-war.
2,339 followers |

John Dodge

Tech journalist/community manager (IDG), machine junkie, ffighter, ferroequinologist, proud liberal
2,322 followers |

Dianne Hanlon Druyff

Director, Client Services at KelliherSametsVolk in VT, friend to animals, greenie, yogini, foodie, @ecorazzi contributor
2,304 followers |

jen boulden

green media personality, eco-life-stylist, animal-lover, IdealBite.com co-founder, semi-classy girl that drinks beer from the can
2,292 followers |

Robert Simpson

Astrophysicist and developer at Oxford University. I work at the Zooniverse.
2,191 followers |

Lance Fortnow

Northwestern CS Professor
2,169 followers |

danielgoldman

Clean energy exec focused on starting & growing cleantech companies, advocating for strong environmental policies & development innovative finance solutions.
2,154 followers |

Cari Gatto

Founder Global Swell Interactive, digital & emerging media maven, food fanatic & environmental activist, mother of 2, wife of 1, enjoys good (or bad) reality tv
2,126 followers |

Michael Hawthorne

Michael Hawthorne. Chicago Tribune environment reporter, nature guy, record spinner, book collector.
2,121 followers |

Wendee Holtcamp

award-winning freelance writer * lover of nature * bohemian * photographer * mover-n-shaker * single mom of 2 smart cookies * seeker of truth & wisdom
2,116 followers |

Deane Rimerman

Pacific Northwest Landscape Restorationist and Technologist. Web Builder, Life-long Photographer, Pro Writer: online & newsprint.
2,111 followers |

Eco-Libris

Eco-Libris is a green company working to green up the book industry in the digital age.
2,064 followers |

Susan Niebur

Women make up half the bodies in the solar system -- why not half the scientists?
2,041 followers |

Razib Khan

Genes rule!
2,038 followers |

vince thompson

Simple guy trying his best to make good things happen for people. Sales Pro, Revenue Consultant and Author as means to that end.
2,033 followers |

Zen Faulkes

Associate professor at The University of Texas-Pan American studying brains, behaviour, and evolution, mostly using crustaceans.
2,023 followers |

Jonathan Gitlin

Science Policy wonk, contributing writer for Ars Technica, amateur racing driver. Views are mine and mine alone.
1,980 followers |

Cassie Rodenberg

In digital media @Discovery, in blogs @SciAm. Former chemist. WRITER / Noun: 1. maker of sentences and coffee, less sugar in the former. 2. idealist with edge.
1,966 followers |

Scott Dodd

Environmental journalist, OnEarth.org editor
1,953 followers |

Bob LaMendola

I left job as health writer at the Sun Sentinel in Ft Lauderdale. Now at Broward Regl Health Planning Council. For health news, folo @Sentinel_health. Thanks!
1,952 followers |

Dave Flanagan

Editor-in-Chief of Advanced Functional Materials (@advfunctmater) and contributor to the materials science news site MaterialsViews.com (@materialsviews).
1,948 followers |

Jeff Stephens

energy marketer, trail runner, and cocktail enthusiast
1,946 followers |

Walter Jessen

Principal/Developer at Walter Jessen Discovery New Media, computational biologist. #bigdata #biomarkers #health #lifescience #communications
1,942 followers |

Carolina Ödman

Proud mum working in science, development, technology, hacking (the good kind), photography, and hanging out in a state of happiness.
1,933 followers |

Stacey Singer

Staff writer for The Palm Beach Post in Florida. Helicopter mom. Engineerophile.
1,933 followers |

John Graham-Cumming

Programmer, Author of The Geek Atlas, man behind the Alan Turing apology, occasional writer, crazed Charles Babbage fan.
1,855 followers |

Pierre Lindenbaum

Postdoc in Bioinformatics at INSERM, Institut du Thorax , Nantes, France -- science drawing java geek database blogger c++ next-generation-sequencing
1,845 followers |

Marc Morano

1,837 followers |

Jon Healey

Editorial writer and blogger at the Los Angeles Times. I write about tech, the economy, regulation, taxes and healthcare, typically in a bloodless fashion.
1,836 followers |

Christopher Swain

I am swimming 1,500+ miles down the Atlantic Coast from Canada to Washington, D.C.
1,831 followers |

MariaEnergia

Writer, PR guru, energy geek, hunter and gatherer
1,830 followers |

Johanne Asselin

President of Nu Era Promotion Inc. We're helping Canadian companies to promote their brands and events with environmentally responsible & creative promotions.
1,815 followers |

CatoGreen

Go Green
1,783 followers |

Henry Furneaux Ph.D.

Molecular Biologist, Educator and Commentator.
1,771 followers |

Francisco J Grajales

Medic; e/mHealth, e-policy, and ICT strategy for health specialist; & climbing addict.
1,769 followers |

Chris Jablonski

Surface tech trends disruptive to business and culture @ZDNet | Help @Riverbed marketing communicate with precision. Tweets are my own.
1,761 followers |

★ amanda bauer ★

cleverly disguised as a responsible adult (super science fellow, astronomer)
1,758 followers |

DanaBlankenhorn

Writer, journalist, futurist. Currently gigs investorscandy.com, seekingalpha.com, opensourcedelivers.com and Danablankenhorn.com. Hungry for more.
1,754 followers |

Suresh Venkat

CS prof: interested in algorithms, geometry, and theoryCS
1,727 followers |

Mamagoesgreen

Market Manager for Abingdon Farmers' Market, Business Owner selling Green Products
1,726 followers |

Kiera Butler

Senior editor at Mother Jones, chicken raiser, mandolin tryer to player, eater of Lorna Doone cookies
1,711 followers |

Morgan L. Kidd

I love finding new ways to save the world
1,707 followers |

Sandra Porter

I teach people how to use bioinformatics to study biology. Interests: digital biology, education, learning, DIY science, music, genetics, microbiology
1,705 followers |

Nicole McCallum

Teaching Consumer Studies for the College of Management and Economics @UofG. Co-founder of The Green Rocket. Yoga & Cycling Instructor. Consultant. Human. :)
1,671 followers |

Alana Elias Kornfeld

Executive Health Editor, The Huffington Post
1,652 followers |

J. Osborne-Gowey

Aquatic/Landscape Ecologist, scientist, husband, father, friend, backpacker, fisher, hunter, diver, community activist, geocacher, naturalist, homebrewer
1,646 followers |

David Whitehouse

Writer, scientist, speaker, journalist. Author: The Moon: A Biography, The Sun: A Biography, One Small Step, Galileo.
1,631 followers |

Steve Offutt

Environmentalist. Climate Change and Market Transformation Expert. Cyclist. Musician.
1,616 followers |

Beck Smith

Assistant Director of the Campaign for Science and Engineering and co-organiser of @SciQT and #Talkfest. It's a science policy party and you're all invited.
1,600 followers |

Gloria Dawson

Now: @NYTimes Social Media Intern & @ColumbiaJourn Then: @TheDailyGreen & @HearstCorp I cover: Food | Environment | Media | Local News Gloria.Dawson@gmail.com
1,594 followers |

bob jeremy

Just An Ordinary Dad Trying To Save Money On Bills Whilst Trying To Help The Environment
1,570 followers |

Paul Raeburn

Author of forthcoming book Do Fathers Matter?-The new science of fatherhood. Science media critic at Knight Tracker. Discover mag contributor.
1,559 followers |

Erin H. May

editor/writer, pro-human/planet, anti-cilantro
1,543 followers |

Climate Crunch

Climate Crunch Eco News & views from around the web
1,534 followers |

Alyssa Danigelis

VT native, night owl, Discovery News reporter, Sawhorse Media editor, and pro freelance journalist writing about tech, business, and sustainability.
1,533 followers |

Daniel J. Weiss

I am Senior Fellow & Director of Climate Strategy at the Center for American Progress Action Fund.
1,521 followers |

Kevin Coyle

Education VP at National Wildlife Federation
1,512 followers |

Sarah Kendrew

Postdoc Astronomer-slash-Engineer, Max Planck Institute for Astronomy, Heidelberg
1,491 followers |

Disco_Tracy

Fiction writer by night. Web producer for Discovery News Tech (http://news.discovery.com/tech/) by day.
1,472 followers |

Abhishek Tiwari

Polymath. Big Data & Web Scale Guy. Interested in Lizards, Elephants, Bioinformatics and 日本. Play with Scala, R, Python, Django, Hadoop.
1,470 followers |

Jack Loftus

Hill Holliday content editor (@HillHolliday). McSweeney's writer. Former Gizmodo, GamePro, Everest Poker guy. Relatively fun. Thoughts here are my own.
1,462 followers |

Alex Connor

Policy wonk, ex-physicist. (All views expressed here are personal.)
1,452 followers |

Neil Saunders

Bioinformatics (CSIRO), hacker, web/open science enthusiast, photographer
1,449 followers |

Phillip Cook

Science geek heavily invested in ed tech, chemistry and the promotion of STEM in science curriculum. I love my family. Big RET fan (graphene @ ND)
1,447 followers |

Ian Hallett

Business Development Manager, Early Drug Development, interested in improving drug development with new technologies, cycling, running and cooking
1,442 followers |

Michael d'Estries

Founder of Ecorazzi, writer, entrepreneur, and gentleman farmer. Great believer in genuine and thoughtful content marketing.
1,433 followers |

Edmund Harriss

Mathematics, graphics, sustainability politics, education...
1,399 followers |

Sarah Vogel

Pharma / Biotech information researcher / librarian, voracious reader, music lover and mom
1,394 followers |

Charlie Fidelman

I cover health for The Gazette. Love music, dogs, squash and a good brioche. Fan of longreads, science, camerawork
1,393 followers |

Monique Beaudin

Journaliste spécialisé en environnement at the Montreal Gazette. Environment, cycling, vélo, agriculture, recycling, recyclage, compost, compostage, green, Habs
1,390 followers |

Ron Williams

Board Chair, Free Speech TV
1,368 followers |

Stephanie Desmon

health and medicine writer
1,352 followers |

Sara Roderick

Join me at @SaraRoderickLA for your daily dose of all things travel, green living, delightful eats, #SoMe, fashion, L.A. and more!
1,335 followers |

Kristen Kulinowski

DC newbie, chemist, educator, policy wonk, working at the interfaces between science and society with an emphasis on nanotechnology.
1,320 followers |

Angela Alexander

Postdoc in translational research at MD Anderson Cancer Center, TT-hopeful, Mac and iPhone lover, music (flute) fan and coffee fiend. Travel lover. I blog too.
1,316 followers |

Charlie McElwee

Climate Change Policy Aficionado & China Environmental and Energy Law Scribbler
1,302 followers |

Anne Minard

Freelance science journalist in Flagstaff, AZ. Love living and writing in the southwest, where the stories rise up from the land.
1,290 followers |

Paul Halpern

Physicist and Science Writer. Author of more than a dozen popular science books, most recently Edge of the Universe: A Voyage to the Cosmic Horizon and Beyond
1,284 followers |

Rossella Lorenzi

Discovery News' Archaeology Correspondent.
1,274 followers |

Kelly Brewington

1,242 followers |

JVB Architects

JVB Architects is a collaboration of highly qualified and experienced Architects, Designers, and Entrepreneur. Fan Page: http://www.facebook.com/jvbarchitects
1,230 followers |

Roderic Page

Expat Kiwi, Professor of Taxonomy at Glasgow University, inclined to say that something sucks at every available opportunity.
1,227 followers |

Alexey Bersenev

MD, PhD. Cell therapy evangelist and independent research analyst. Sci web geek. Addicted to darjeeling tea
1,213 followers |

mtobis

climate scientist, blogger, nouveau Tex, pythoneer, interested in public discourse and web 2.0
1,208 followers |

Marcus Wohlsen

Associated Press technology reporter. Author, Biopunk: DIY Scientists Hack the Software of Life. Science scenester. Child-rearer. Links≠endorsements.
1,187 followers |

Egon Willighagen

Cheminformatician (or Bioinformatician, or chemometrician, depending on who asks) into Drug Discovery, Life Sciences, and science in general.
1,161 followers |

Mary Beckman

Science writer at Pacific Northwest National Lab
1,156 followers |

Alejandro Montenegro

Molecular Biologist. Research interests include transcriptional regulatory networks and genomics. I blog at The MolBio Hut.
1,129 followers |

elizabeth corcoran

listening for a story, telling a tale
1,122 followers |

carolyn johnson

science reporter!
1,110 followers |

Eric Bangeman

Managing Editor of Ars Technica, part-time rugby referee, full-time neat guy.
1,103 followers |

Chris Upton

Viruses and bioinformatics. University of Victoria
1,089 followers |

Larry O'Hanlon

Communications officer for the W. M. Keck Observatory
1,060 followers |

froylance

Retired Baltimore Sun science writer, MarylandWeather.com blogger. Backyard astronomy hack.
1,056 followers |

Eva

Former lab rat, now professional friend of lab rats. I run @scibarcamb and @the_Node, and tweet at @Dev_journal as well.
1,042 followers |

medgeek

Med Student. Geneticist wannabe. Web 2.0 Guru. Interested in genetic counseling, research and diagnosis of genetic conditions. Trek & Charity Endurance Events.
1,008 followers |

Michael Reilly

Senior technology editor, New Scientist. Geologist. Maker of pies.
1,005 followers |

Lori Cuthbert

Editor-in-Chief of Discovery News, co-owner of St. Michaels Winery.
984 followers |

Jeremy Jacquot

Freelancer and oceanography grad student
980 followers |

Fiona Brinkman

Microbe-loving bioinformaticist and genomics researcher aiming to better control infectious diseases in a sustainable way. Also a Mum.
960 followers |

Andrew Fynn

Principal C Restored LLC. The one business opportunity in the world to remove 10% of annual CO2 emissions and restore the world's soils & productive ecosystems.
957 followers |

Edward Duca

PhD (Genetics), science writer and communicator, amateur photographer (http://tinyurl.com/33f6pcf). Loves EUSci (http://www.eusci.org/) science and blabbing.
953 followers |

Alex Greijn

Etsy seller, recycling maniac, textile student, re-user of everything.
952 followers |

Eric Weinstein

Some assembly required. Spelling not included. May contain math. Run.
947 followers |

Julia Kumari Drapkin

Multimedia science reporter and lead producer of #iSeeChange @weseechange.
940 followers |

Chris Patil

Researching cellular senescence, blogging about biogerontology at Ouroboros: Research in the Biology of Aging
922 followers |

Neil Gunther

Computer performance, capacity planning, mathematician, physicist, hireable-Gun, author, instructor: the nexus being information (and ♬) http://goo.gl/3tScr
911 followers |

Christina Stephens

I am an iconoclastic sarcastic skeptical ignostic ubuntu secular humanist strong atheist. Biomechanist, scientist, clinical occupational therapist, blogger.
893 followers |

Jennifer Kho

I'm a freelance reporter and editor specializing in business and environmental topics, especially green technologies.
890 followers |

Andy Lloyd

By day Andy is a mild-mannered science communicator. Prone to occasional bursts of political rantiness. Multi-faceted geek
856 followers |

Bryan Williams

Learned about PRT a bit ago and I really like the idea. So I'm trying to share news and info about green transportation and tech. I think it has huge potential.
843 followers |

David Rabenau

The life of a green rater and building performance analyst. I mostly do residential energy audits. LEED AP. Certified HERS rater. Certified BPI Professional.
831 followers |

Markus ★ Hammonds

Just some astrochemist with a head full of stars. A prolific procurer of presposterous propensities providing & pronouncing problematic predicaments.
830 followers |

John Kent

829 followers |

Jon Copley

Scientific expeditions exploring deep-sea volcanic vents around the world
817 followers |

topoisomerase

molecular biologist primarily focusing on genomics, particularly next-gen sequencing at present. i also possess legendary Rock Band skills.
787 followers |

Meredith Cohn

I'm a Baltimore Sun reporter covering the environment, health & fitness.
783 followers |

Collin Dunn

Internet, food, and drink, often in the order. Blog wrangler, food nerd, whiskey fan. Sometimes I make cheese.
776 followers |

Simon Cockell

Bioinformatics support scientist. Python/Perl/Java coder. Gateshead/Newcastle resident. Husband. Dad.
771 followers |

Ian King

San Francisco-based technology reporter for Bloomberg
765 followers |

A. James

Healthy lifestyles are my passion, energy analysis is my work, and tweeting let's me merge them together!
761 followers |

Christopher Hinton

Christopher Hinton performs market analysis for a private firm. He is a former reporter of MarketWatch and The Wall Street Journal digital network.
739 followers |

Sarah Goforth

Writer, editor, multimedia producer, Howard Hughes Medical Institute. Opinions expressed here are my own.
720 followers |

MarkStrom

Microbiologist/molecular biologist, genomics applications, Mac User, part-time blues guitar player
717 followers |

Alan Graham

Marketing @Davesgourmet. Formerly of Discovery Channel. Writer, producer, online marketing guru, creator of http://tinyurl.com/27wmfol My dog thinks I'm funny.
699 followers |

Anne Simonson

Fan of: the ribosome; bicycling; molecular evolution; Disabled Sports USA, rabbits. Yes, I said rabbits.
676 followers |

David Delcourt

Founder of MakeMeSustainable.com, a Noveda Technologies company, looking for what's new and interesting.
675 followers |

hermmays

What does an evolutionary biologist do everyday? Follow me and find out. All tweets are my own.
669 followers |

Will Russell

Innovation manager with the Royal Society of Chemistry
660 followers |

mudphudder

MD, PhD in residency! BRING IT ON!!!!!!!!!
648 followers |

Michael Dawson

cognitive scientist, psychology professor at U. of Alberta
633 followers |

Kenna Shaw

failed scientist.
631 followers |

George

An Oceanographer & Photographer who is on a quest to visit all 393 National Parks.
609 followers |

Rachel Cernansky

Journalist. Interested in environment, social justice & human trafficking, Africa.
596 followers |

Jim Croft

Botanist, information manager, bureaucrat, amateur horticulturalist, technology junkie, internet addict, geek. In pursuit of the meaning of leaf.
586 followers |

Hysell Oviedo

Looking for the highest tree to get a glimpse of the forest. For what I do see http://publicationslist.org/hysell
573 followers |

TimelessEarth

561 followers |

Sam Boykin

Time Magazine's 2006 Person of the Year.
544 followers |

eleblog

Elephant News and Information
489 followers |

Emily Sohn

Freelance journalist. Discovery News contributor. Health, science, environment, kids, adventure.
466 followers |

Tobi-Dawne Smith

One Woman, Many Hats. All worn with pride.
460 followers |

Dr. Merold Mueller

Networkinggroup for members of local Biotech Clusters
449 followers |

Ernesto Guido

Italian amateur astronomer whose main interests lie in the astrometry and physical properties of comets
448 followers |

E.

I'm a mom, a wife, a scientist, just trying to hold it all together.
439 followers |

Seelye Martin

434 followers |

Lauren Effron

Digital producer for Nightline and ABCNews.com, living and writing in NYC. My tweets are my own and certainly do not reflect the opinion of my employer.
418 followers |

An MIT postdoc

I run @acidflask's sciency tweets. Life at MIT. Life as a postdoc. Science focussing on computational/theoretical chemistry/physics.
410 followers |

Bethany Bray

Assistant Professor of Psychology at Virginia Tech, and all-around research methodology nerd.
407 followers |

Heather Etchevers

Expatriate U.S.-born scientist and renaissance woman
376 followers |

Alex W

Mostly fastidious, occasionally oblivious. Neuroscientist, programmer, photographer.
374 followers |

Marc-Michael Blum

(Bio)chemist who tries to save the world from the bad guys messing around with chemical and biological weapons.
364 followers |

Beth Schachter

Science writer & editor
358 followers |

jes

materials chemist, blogger, ninja?
347 followers |

Eric Suh

Mad Scientist
339 followers |

Tom Wagner

Cryosphere Program Scientist, NASA HQ. I help figure out how NASA can best study the earth's ice, glaciers, and polar regions to understand climate change.
339 followers |

KaseyDee

Supervising Video Producer for Discovery Communications. Lover of long runs and deep dives. Pit Bull Mama.
326 followers |

Beth Wellman

K-20 learning: virtual worlds, earth science, physics, math, teachers, technology
326 followers |

Elizabeth Svoboda

Contributing writer for Popular Science, Fast Company, the New York Times, and various other publications.
314 followers |

Todd Zegers

Helping America get Green one computer at a time!
312 followers |

Rich Meisel

I am a geneticist who is interested in things.
294 followers |

Raymond V. Flytrap

My name is Raymond. I am a Venus flytrap. I like to eat flies.
251 followers |

James Quick

communications professional dedicated to cleantech
250 followers |

Dan, Just Dan

Physicist, philosopher, drinker, socialite, and overall good chap. Ohh and modest :)
189 followers |

Janet Fang

That's Fang, like White Fang. Marine geochemist by day, science writer by night (and early morning).
169 followers |

David Berg

153 followers |

YouMayBeGreen

All shades of green are welcome! How are you green?
146 followers |

Gino Borland

121 followers |

Sandy Fowler

Mom, wife & biz owner who's havin' fun goin' green! Also tweeting as @sandyfowler
89 followers |

Science Tweets

Chemistry teacher; Father of 2; husband of 1; Science 2.0 writer
83 followers |

Sara

Studying environmental design, Love classical music, Best friend to 2 jack russels, As green as can be.
67 followers |

Warapha R.

38 followers |

Curated by SmartPlanet
Submitted by Aurametrix

494
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259
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Smart and thought provoking people to follow on twitter
Tags: science technology health business green innovation people energy ideas insight

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