Environment
National Geographic
Since 1888, we've traveled the Earth, sharing its amazing stories with new generations. Official Twitter account of National Geographic.1,917,893 followers | Follow
TreeHugger.com
Links, Ideas and Conversation from the TreeHugger hive mind, the latest in modern green.169,899 followers | Follow
EcoInteractive
Eco Preservation Society: Inspiring Action, Empowering People,Connecting Communities & Transforming the Planet through Conservation, Reforestation & Education161,011 followers | Follow
Nature Conservancy
The Nature Conservancy welcomes you to its official Twitter site! We're a leading conservation organization working for people and nature.119,728 followers | Follow
HuffPost Green
Latest environment & energy news, green-IY projects, animal stories & more (contact: huffpostgreen@huffingtonpost.com)97,341 followers | Follow
National Wildlife
National Wildlife Federation works to inspire Americans to protect wildlife for our children's future. Staff updating: @starfocus @rarewildlifeguy @ksuzj89,729 followers | Follow
PlanetGreen.com
PlanetGreen.com offers practical, everyday tips on how to live a greener lifestyle. We offer actionable advice across a variety of topics: green made real.88,000 followers | Follow
Guardian Environment
Green news, comment & more, run by the environmentguardian.co.uk team, inc @james_randerson & @adamvaughan_uk & @dpcarrington86,908 followers | Follow
Dept. of Agriculture
Stay up to date with the latest news, events and info from the U.S. Department of Agriculture - and live tweeting, too!76,824 followers | Follow
Bates Nursery
A 80 year old, third generation family biz founded by Bessie Bates. Friendly, informative staff; quality plants. Beautifying Nashville Since 1932.76,796 followers | Follow
NYT Green Blog
Green: A Blog About Energy and the Environment from The New York Times63,925 followers | Follow
Greenpeace USA
Saving the planet for 40 years. @meenazahra & @chr15_eat0n here, Tweeting for a green & peaceful future.56,254 followers | Follow
Michael Sprague
Water holds a kind of magic. It calms us. It lifts us. Ultimately it sustains us.50,222 followers | Follow
WWF Climate Savers
Finding workable, practical solutions to the problems posed by Climate Change and Global Warming.48,740 followers | Follow
Charlie Hilton
Founder of @TheUrbanTimes // Music Producer // Editor-in-Chief at @URBNFUTR // Urban Planner46,853 followers | Follow
Sierra Club
Since 1892, the Sierra Club has been working to protect communities, wild places, and the planet itself.39,153 followers | Follow
Sierra Magazine
Environmental news, lifestyle tips, and free-ranging opinion from the editors of Sierra magazine. Our mission: Explore, enjoy, and protect the planet.38,099 followers | Follow
Earth Institute
Mobilizing the sciences, education and public policy to achieve a sustainable earth36,869 followers | Follow
HealthRanger
Consumer health advocate and editor of http://www.NaturalNews.com. Get a free eBook (25 Amazing Facts about Food) by visiting http://tinyurl.com/nnebook35,531 followers | Follow
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/unclewade35,513 followers | Follow
ActionForOurPlanet
Action For Our Planet (AFOP) provides information on animal exploitation, rainforests, environmental issues, politics, veganism, poverty and human rights.34,340 followers | Follow
Urban Land Institute
ULI’s mission is to provide leadership in the responsible use of land and in creating and sustaining thriving communities worldwide.34,273 followers | Follow
T.E. Pelton
Tara, researcher, writer, marketing strategist, Author of Marketing from the ♡. Green, global sustainability,34,159 followers | Follow
Svein Tveitdal
Twitting Climate Change news and Climate Information English/Norwegian, IPCC, Director Klima 2020, former UN Director32,856 followers | Follow
Caelus Green Room
Join the Conversation in the Caelus Green Room! The CGR is a message board for sustainability, green, alternative energy, and environmental discussions.32,829 followers | Follow
Lisa P. Jackson, EPA
Administrator of the U.S. Environmental Protection Agency32,642 followers | Follow
Sprout Savvy
Sprout Savvy gives you the latest information on living a healthy,natural and balanced lifestyle. Learn about going green.32,621 followers | Follow
Natural Living
N.L.is designed to help bring people together for a safer, healthier lifestyle and a better environment.31,592 followers | Follow
Chris Price
I am a young professional and entrepreneur in LA. Into all things green and sustainable. Wake up and let's all do our part.30,765 followers | Follow
Organic Consumers
Campaigning for health, justice, sustainability, peace and democracy!30,426 followers | Follow
Forks Over Knives
FORKS OVER KNIVES examines the claim that most degenerative diseases can be controlled, or even reversed, by rejecting animal-based and processed foods.29,475 followers | Follow
Rivenrock Gardens
A grower of organic edible cactus. Certified organic by CCOF since 1993. Cactus prep info, organic info, country stories and tall tales.29,211 followers | Follow
Greenversations
The official blog of the U.S. Environmental Protection Agency29,161 followers | Follow
Climate Progress
Blog dedicated to providing the progressive perspective on climate science, climate solutions, and climate politics.27,603 followers | Follow
Mikhael Geyman
Help me save life on my planet and preserve environment for our children by using green and clean energy sources! Like to follow back and listen to you.24,806 followers | Follow
Paul Williams
Film maker, BBC Wildlife TV: Making 'Monsoon' series on SE Asia & India. Writer, Photographer. Facebook: http://on.fb.me/ammonoid Creator of @Earth_News24,745 followers | Follow
Anthony Gilbreath
Founder of Caelus Consulting - into green, tech & travel. Я говорю на русском языке, Deutsch, lietuvis, y español :-)23,094 followers | Follow
Climate Debate
Trying to keep the climate debate honest #climategate #climatechange #agw22,730 followers | Follow
RayBeckerman
Law, social justice, nature, human & animal rights, the arts, ecology. Progressive. I try to lend my voice to the voiceless. http://is.gd/cNFKN22,438 followers | Follow
Marnie Glickman
Activist, mom, former co-chair Green Party of the US, worked as managing director of Green Party of California21,394 followers | Follow
organic wales
The Organic Wales directory covers organic Welsh food, restaurants, homes, gardening, and holidays. Features include recipes and book reviews.21,170 followers | Follow
CERC_Columbia
Center for Environmental Research and Conservation - Undergrad Abroad Programs; Executive Education Classes and Certification; Teacher Training; K-12 Education20,967 followers | Follow
US EPA News
Automated news releases from the US Environmental Protection Agency. Note: Twitterfeed sometimes breaks, so pls let @levyj413 know.20,870 followers | Follow
David Roberts
Seattleite transplanted from Tennessee; now blogging for Grist about energy politics. Climate hawk, deficit dove.20,673 followers | Follow
Erik van Erne
Green Sustainable News: earth climate renewables water cradle to cradle c2c - nieuws blogger communicatie pr social media en oranje fan http://bit.ly/fqDgUQ20,659 followers | Follow
NYTimes DotEarth
NYTimes.com/DotEarth is Andrew C. Revkin on Climate Change and Sustainable Living20,535 followers | Follow
The Climate Group
An independent, not-for-profit org working with government + business leaders to drive a #CleanRevolution. Use # to show the #CleanRevolution in action for RTs.20,366 followers | Follow
RenewableEnergyWorld
World's #1 Renewable Energy News and Information Source20,241 followers | Follow
Shane Snipes
Starting April 2010, I am talking to 1000 people about sustainability across America. Join the largest ECOnversation. 132 cities & 900+ interviews so far!20,107 followers | Follow
US EPA Research
Office of Research & Development (ORD) is the scientific research arm of the US EPA.19,150 followers | Follow
Tiny Green Bubble
TinyGreenBubble.com is the online destination of anyone who is interested in living green, living fair, and living aware - but still living fun.18,875 followers | Follow
Friends of the Earth
Friends of the Earth U.S. defends the environment and champions a healthy and just world.18,681 followers | Follow
EarthIslandInstitute
Earth Island Institute grows environmental leadership to support the biological & cultural diversity that sustain the environment18,668 followers | Follow
Renewable EnergyNews
Renewable Energy News & Information - add your business FREE to our new directory: http://www.renewable-energy-news.co.uk/business-directory/18,343 followers | Follow
Barb Bertsch
...Bamboo and organic towels, luxury bedding plus more. Our focus is eco-friendly and a passion for high quality.18,006 followers | Follow
Climate Action
Searching for the path to a low carbon future from the depths of consumerist, capitalist Beijing! Find us on Facebook: facebook.com/climateaction17,636 followers | Follow
Polar Bear Trust
The Polar Bear Trust Supports Polar Bear Research, Education & Conservation.17,278 followers | Follow
350.org USA
U.S. organizing from 350.org. Join a global movement that's inspiring the world to rise to the challenge of the climate crisis.15,979 followers | Follow
The Energy Collectiv
The world's best thinkers on energy and climate issues. Register for newsletter, webinar access and ebooks. http://ow.ly/4Rr1m15,971 followers | Follow
OneClimate
OneClimate.net is a new social networking space for sharing ideas and taking action on climate change.15,020 followers | Follow
Climate Desk
A journalistic collaboration dedicated to exploring the impact—human, environmental, economic, political—of a changing climate.15,010 followers | Follow
The Green Home
14,754 followers | Follow
Earth Balance
Earth Balance® produces a line of buttery spreads, shortenings, nut butters and now soymilk.14,027 followers | Follow
SmarterLight LEDs
Taking Action, Giving Light. Smarterlight.com is a world leading provider of eco friendly lighting solutions. http://www.smarterlight.com13,902 followers | Follow
AMAZON WATCH
Amazon Watch works to protect the rainforest and advance the rights of indigenous peoples in the Amazon Basin.13,178 followers | Follow
Marc Gunther
writer and speaker on business and sustainability, contributing editor at FORTUNE, senior writer at GreenBiz.com12,578 followers | Follow
Mountain Seer ▲
News, observations, philosophy of the biosphere, environment, ecosystems, wildlife. Visit www.Transcend.ws website! #TFB12,388 followers | Follow
Liz McLellan
owner hyperlocavore.com - a yardsharing community. Let's grow together! Foodie, gardener, crafty nerd and hot-headed ginger. http://ow.ly/acvWq12,191 followers | Follow
CARBON NEWS
Carbon News...The Carbon Economy Experts. Our new website launching soon. www.CarbonNews.com11,700 followers | Follow
C. Meyer-Pedersen
Das gute Leben grüner machen – mit Ökofinder.de, dem Branchenverzeichnis für grüne Unternehmen!11,641 followers | Follow
Current Green
11,627 followers | Follow
White Wolf
Wolf Wisdom http://www.facebook.com/pages/White-Wolf/13224237205211,614 followers | Follow
Bees in Art
Bee Art: Bee Painting: Bee prints: Bee Drawings: Bee Poetry: Bee Sculpture: All at Bees in Art11,479 followers | Follow
David Collier
Tilles focuses on sustainability, social responsiblity and the culture of giving back. David Collier founded and leads Tilles.11,298 followers | Follow
EAs for Earth(lings)
arm-chair activists, beach cleaners, animal defenders, human rights advocates, ... all welcome :) TY for helping10,914 followers | Follow
Rocky Mountain Inst
Founded in 1982, Rocky Mountain Institute is a research and consulting non-profit that drives the efficient and restorative use of resources.10,860 followers | Follow
edie.net environment
Environmental news, eco jobs, green suppliers, information for sustainability professionals10,465 followers | Follow
InsideClimate News
InsideClimate News is a non-profit, non-partisan news organization that covers clean energy, carbon energy, nuclear energy and environmental science.10,381 followers | Follow
Bee Guardian FND
The Bee Guardian Foundation is an educational conservation organisation that aims to help all bee species and other pollinators.9,725 followers | Follow
Orangutan Project
The Orangutan Project (TOP) is a not-for-profit organisation, supporting orangutan conservation, habitat protection and orphan orangutan care9,625 followers | Follow
OrganicGuide.com
Hi - I'm Tony from OrganicGuide.com. Keep up-to-date with organic news, resources, events and more.9,560 followers | Follow
Green Home Dude
Blogging and Tweeting about green home energy,free energy and viable ways to reduce home energy consumption9,459 followers | Follow
Green Revolution
Tweeting (& retweeting) the best in green trends. 1. Follow us. 2. Tag your tweets with #grnrev 3. We read your posts 4. We re-tweet the best of them !9,209 followers | Follow
CBD-Cntr for Bio Div
The Center works through science, law, and creative media to secure a future for all species, great or small, hovering on the brink of extinction.9,161 followers | Follow
Tar Sands Action
Joining together to stop the dirtiest project on earth with civil disobedience.9,014 followers | Follow
Jim Harris
#1 int'l bestselling author, management consultant & professional speaker tweeting on #environmental issues, leadership & how going #green drives profitability8,843 followers | Follow
UT Built Environment
The Twitter community for @theurbantimes' built environment section.8,812 followers | Follow
PostConsumers
Using humor and irony, Postconsumers.com is building a national brand without profit to help move society beyond addictive consumerism.8,696 followers | Follow
Cascadia Commons
The vision of Cascadia Commons is to foster a thriving, regional community that is economically prosperous and in harmony with the natural environment.8,677 followers | Follow
Agriculture View
Follow us to get the latest information about sustainable agriculture8,488 followers | Follow
Sustainable Inc
Following the latest trends in Sustainable Business, including CSR, Clean Tech, Social Venture, Business Ethics, Microfinance, Green Careers and more.8,392 followers | Follow
Gavin Berman
Better homes for a better planet. Get the latest tools, advice and news to help renovate or build your dream green home.8,286 followers | Follow
Green Sheet
The latest news and analysis of the business of the "green" industry: Wind, Solar, Oil, Nukes & Garbage.8,202 followers | Follow
Maryn McKenna
Author of SUPERBUG & BEATING BACK THE DEVIL. Blogger @Wired; columnist @SciAm; SELF, Nature, Guardian, etc. Next book: food production. Also @MRSA_blog.7,991 followers | Follow
Concerned Scientists
The Union of Concerned Scientists is the leading science-based nonprofit working for a healthy environment & safer world. I'm Katy, I handle social media at UCS7,896 followers | Follow
Christiana Figueres
Executive Secretary of the UN Framework Convention on Climate Change (UNFCCC). Passionate about fighting climate change. Mother of two wonderful young ladies.7,863 followers | Follow
Living Mandala
A network of solutionaries offering courses, workshops, events and consultation services for ecological and social regeneration.7,833 followers | Follow
Laura S. Fisher
Fashion Artist seeking to empower herself and increase personal sustainability by growing a year 'round vegetable garden. In. The. Bathroom.7,647 followers | Follow
Environment Report
The Environment Report reveals the relationship between the natural world and the everyday lives of people.7,646 followers | Follow
Summer Rayne Oakes
I run barefoot and collect bugs. In my spare time I'm an undercover model working on environmental programs worldwide.7,616 followers | Follow
AP Climate Pool
News, discussion and a behind-the-scenes look at climate change & environment issues from The Associated Press, the essential global news network7,601 followers | Follow
Tanya Denckla Cobb
local food; sustain ag; author: Reclaiming Our Food: How the Grassroots Food Movement is Changing What We Eat + Gardener's A to Z Guide to Growing Organic Food7,273 followers | Follow
GlobalClimateTreaty
News, Pro AND Con, about the Global Climate Change. (Disagree? Don't shoot the messenger).7,256 followers | Follow
Carla Tonelli
I'm the former green business editor for Reuters.com and tweet about sustainability news -- and anything else that catches my eye.7,102 followers | Follow
UT Environment
The RSS feed for The Urban Times environment articles. Save the world.6,989 followers | Follow
Ecological Internet
Biocentric micro-blog & best ecology news from largest eco-portal provider - committed to global ecology, rights, justice & equity - much more @EI_EcoNewsfeed6,977 followers | Follow
Environment America
Environment America is a federation of citizen-funded organizations that advocate for clean air, clean water, and open spaces in 29 states and Washington, DC.6,968 followers | Follow
EarthTechling
We are a green technology news and information website, focused on topics like clean energy, electric vehicles and green gadgets.6,866 followers | Follow
Care Environment
6,762 followers | Follow
Anna Lappe
Author, real food advocate, mom, and author of Diet for a Hot Planet, Hope's Edge, and Grub.6,737 followers | Follow
Proud Green Home
www.ProudGreenHome.com is about green home building, remodeling, energy efficiency, appliances and sustainable living.6,704 followers | Follow
Greenpeace Pilipinas
We're an independent global campaigning organisation acting to change attitudes and behavior, to protect the environment & promote peace http://justcoz.org/gpph6,647 followers | Follow
TransportationNation
A public radio project with breaking news on rail, bikes, cars, transit; in-depth analysis of politics and transpo; cool visuals. From WNYC, stations across US.6,504 followers | Follow
Non-GMO Project
An informed choice for North Americans who want to avoid GMOs in their food and products6,359 followers | Follow
St. De Noordzee
Stichting De Noordzee is de natuur- en milieuorganisatie die zich inzet voor een duurzaam gebruik van de Noordzee www.facebook.com/Stichting.De.Noordzee6,352 followers | Follow
Global Exchange
Global Exchange is a membership-based international human rights organization dedicated to promoting social, economic and environmental justice around the world6,101 followers | Follow
Greenertomorrow
Eco-site about green solutions, renewable energy and sustainable technologies6,071 followers | Follow
Sustainable Urbanism
Walkable, transit-served urbanism integrated with high performance buildings and infrastructure.5,997 followers | Follow
EnviroCanada
Critical Environmentalism | a digital magazine w/ complimentary subscriptions for our twitter followers.5,935 followers | Follow
Brian Williams
In the United States, more people believe that houses can be haunted by the dead than believe that the living can cause climate change.5,846 followers | Follow
SustainAbility
A think tank & strategy consultancy working to inspire transformative business leadership on the sustainability agenda. Tweets via @FBuckingham and @mchivot5,834 followers | Follow
Tom Laskawy
Executive Director of the Food & Environment Reporting Network and writing on food and ag policy for Grist5,807 followers | Follow
Ocean Leadership
a representative of the leading ocean research and education institutions with the mission to advance research, education and sound ocean policy.5,793 followers | Follow
Brad Johnson
Campaign Manager for Forecast the Facts (@ForecastFacts). Former ThinkProgress Green Editor at the Center for American Progress. Opinions are mine alone.5,742 followers | Follow
Circle of Blue
Reporting the global freshwater crisis. Publishes #WaterNews, the daily go-to source for global water news and data.5,573 followers | Follow
Michael Noble
Clean energy, climate and transportation leader, organizing constituencies, policy strategy & philanthropy. CEO Fresh Energy & Publisher MidwestEnergyNews.com5,300 followers | Follow
Canary Organization
We are a group of anti-GMO citizens trying to raise awareness of the impact of #GMOs. We stand for freedom. ©RSS Feeds5,058 followers | Follow
Lisa Vickers
Ecocentric activist. Global Campaigner @Avaaz. Usually tweeting about environmental, social and political change & my dog. Opinions are only mine.5,002 followers | Follow
Emily Gertz
Journalist. Co-author w/@PatrickDiJusto of @OReilly's Environmental Monitoring with Arduino. Bylines: @TPM, @OnEarthMag, @Ecomagination ... www.emilygertz.com4,956 followers | Follow
Climate Change Facts
Unbiased climate change facts with links to major organizations. Owned by @DrJohnEverett, tweets by @slelinhares4,815 followers | Follow
Brandon Keim
Eukaryote. Treehugger. Science journalist. Associate editor @wiredscience4,675 followers | Follow
Tim DeChristopher
I am an activist building a movement that sings like a movement. [managed by @ash_anderson while incarcerated. See website for instructions on @ replies, etc.]4,632 followers | Follow
Gravity Dynamic
History in the making - Standalone Gravity-energized Electrical Generators joining forces w/ Solar & Wind | @OccupyGravity | #Physics #OpRapidShift #Rioplus204,628 followers | Follow
forestethics
We work in the US and Canada to protect wild places, wildlife, and human well-being in Canada's Endangered Forests.4,580 followers | Follow
Ashleigh J
UK Solar Directory - The most comprehensive Solar Directory available - over 3500 companies listed http://www.ivcleantech.com4,505 followers | Follow
Mae Stevens
Columbia grad. Policy. Politics. Detroit Tigers fan. Future mover and/or possible shaker. Tweets my own.4,447 followers | Follow
Suzanne Goldenberg
Guardian's US Environment Correspondent, recovering war reporter4,421 followers | Follow
JesseJenkins
Clean energy policy analyst. Credible source. See http://gplus.to/JesseJenkins/ All views solely my own.4,391 followers | Follow
Alan Nogee
Clean energy consulting. Former Union of Concerned Scientists Clean Energy Program Director. Tweeting on renewable energy, coal, nuclear, climate.4,262 followers | Follow
Curt Sutorius
Tweeting about green energy, tech and gadgets. Do you see that follow button there? I'd tap that if I was you. :)4,235 followers | Follow
Matt Weiser - Sacbee
I cover water & environment news for the Sacramento Bee. Follow Sacramento-San Joaquin Delta issues here. Email me: mweiser (at) sacbee.com4,111 followers | Follow
Oil and Mining Watch
giving you the good oil on the bad practices of oil & mining operators big or small4,074 followers | Follow
Peter Gleick
Co-founder Pacific Institute; climate/water scientist; member National Academy of Science, MacArthur Fellow; author of Bottled and Sold. My tweets are my own.3,991 followers | Follow
clean_tech_org
Where scientists and enterpreneurs meet to commercialize clean technologies3,959 followers | Follow
PublicTransportation
Follow us and help the APTA build this grassroots movement in support of public transit. See www.PublicTransportation.org for more information3,847 followers | Follow
Jeffrey Hogue
Former VP of CSR/Sustainability at @Danisco. Expert in Residence @PresidioGrad. Exploring new opportunites to drive performance & leadership in a new org.3,806 followers | Follow
jeff cooley
We are river radicals (only kidding) We like science - We like the environment - We like rivers. We like fun!3,806 followers | Follow
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.3,765 followers | Follow
SoyEcoista
Luchando por una concientización ecológica colectiva que ayude al equilibrio y al rescate del ambiente natural del que dependemos. Creadora del tag #soyeco3,628 followers | Follow
Simple Green
Welcome to the simple green lifestyle. Change is coming. You can make a difference. Will you be a part of it?3,553 followers | Follow
Groundswell
We strengthen rural communities to build healthy farming and food systems from the bottom up3,472 followers | Follow
Peaceful Uprising
Creating a just and healthy world by any (nonviolent) means necessary. http://peacefuluprising.org/core-principles - Revolution before institution3,399 followers | Follow
Let's Save Michigan
A campaign to get Michiganders involved in creating more vibrant and attractive cities.3,311 followers | Follow
NRDC Action Fund
3,305 followers | Follow
UseItForever
Your source for news and reviews of environmentally-friendly products & innovative recycled goods. www.makeitonce.com www.useitforever.com3,285 followers | Follow
Eco Beaver
Proud Canadian, husband, father of 2 girls, vegetarian, looking to create a greener world for my kids.3,273 followers | Follow
Severn Cullis-Suzuki
I am a sustainability advocate, author, speaker, television host...and now a mother - yay! I am also @wecanada Champion in the lead-up to the Earth Summit 2012.3,251 followers | Follow
Green Telegram
Latest Updates in Green Living, sustainable living, renewable energy, solar power, wind power. Exciting alternative revolution!3,243 followers | Follow
Tom Traver
Native habitat restorer, arborist, green issues. How much more of nature do we need to degrade to perpetuate our standard of living?3,197 followers | Follow
Echofrog Blog
Echofrog is news blog covering topics in Science and Discovery, Energy, Earth and Environment and more.3,139 followers | Follow
Hippie Butter
Hippie Butter is dedicated to the procurement, testing and distribution of retail brand hemp food & hemp skin care.3,137 followers | Follow
Greenpeace Students
The Greenpeace Student Network is an alliance of passionate leaders fighting environmental crimes with grassroots power. www.greenpeacestudents.org3,098 followers | Follow
ThinkProgress Green
Part of the Think Progress family. Covering climate, energy, and environment news. Tweets by @RebLeber2,936 followers | Follow
Extinction Symbol
This symbol represents the extinction crisis. Please create it wherever you can to raise awareness of the rapidly accelerating collapse of global biodiversity2,876 followers | Follow
OperationRapidShift
#OpRapidShift to Sustainable Energy, SeaH2O Desalination, & CO2 Capture #Geoengineering | @GravityDynamic | #ClimateReality2,872 followers | Follow
Darren Samuelsohn
POLITICO White House & senior energy/environment reporter dsamuelsohn@politico.com2,848 followers | Follow
Jeff Jennings, Jr.
Inventor/Activist | @GravityDynamic @OpRapidShift | #NASA #Occupy #OWS #Gravity #ClimateReality #UN #Rioplus20 #FutureWeWant #IDWP2,831 followers | Follow
ENVIRONMENTAL LAW
The Environmental Law Institute (ELI) makes law work for people, places, and the planet. Founded 1969.2,820 followers | Follow
Chesapeake Climate
The Chesapeake Climate Action Network is the first grassroots, nonprofit organization dedicated to fighting climate change in Maryland, D.C., & Virginia.2,818 followers | Follow
SEI Climate
Stockholm Environment Institute climate & policy research team, working at 7 centres worldwide. We post highlights of our work & interesting items we encounter.2,795 followers | Follow
Transition Ventures
Leveraging whole-systems design and a full spectrum, integral approach to develop resilient and regenerative endeavors. Tweets (mostly) by @byrnegreen2,734 followers | Follow
Great Green Careers
Great green jobs for everyone! Jobs in renewable energy, sustainable building, and environmental engineering.2,722 followers | Follow
Dennis Dimick
#journalism #environment #photojournalism; @natgeomag Member: @sejorg @AAASMember @NPPA @flickr @500px; Faculty @MPW61 http://www.mophotoworkshop.org/2,709 followers | Follow
Green Economy News
Be the change – create a green economy by following major news about biofuels, carbon markets, green IT, hydro power, smart grid, solar, wind power & water.2,676 followers | Follow
Mike Hudema
Greenpeace Canada Climate and Energy Campaigner focusing on tar sands and green jobs.2,667 followers | Follow
Food Sprout
Want to eat only organic sustainable food when you go out for dinner? We can help. We make food transparent so you know what the restaurants are serving.2,616 followers | Follow
Clean Cookstoves
Global Alliance for Clean Cookstoves is an initiative to create a global market for clean cookstoves to save lives and empower women in developing countries.2,586 followers | Follow
WRI Climate Team
Updates from The World Resources Institute's Climate and Energy Program2,488 followers | Follow
aroncramer
President and CEO of BSR, and co-author of Sustainable Excellence.2,476 followers | Follow
Toby Barazzuol
president of Eclipse Awards, dreamer, ecologist, entrepreneur, philosopher, optimistic green futurist, community builder. sustainability is supercooool2,451 followers | Follow
Mike Bannan
Fun, Hardworking, motivated, entertaining, interested in technology, marketing, sales and helping people grow. Works towards a greener planet Hates politicians2,399 followers | Follow
Moving Planet
Wherever you are, come be a part of a huge global rally to demand action on the climate crisis.2,340 followers | Follow
Mountain Climbing
2,332 followers | Follow
HoneybeesToday
Save the Honeybees that are disappearing! they are responsible for pollinating 1/3 of our food and are thus vital to economies and our own food supply.2,323 followers | Follow
Morgantown News
Real-time news about Morgantown, WV, sent directly to your Twitter feed.2,256 followers | Follow
Streetsblog DC
Covering federal and national news on sustainable transportation and livable cities, dc.streetsblog.org.2,209 followers | Follow
Pines International
Established 1976, Pines grows organic wheatgrass in the same location with same methods that were used in original research quoted by Wigmore & other authors.2,182 followers | Follow
Lisa Friedman
Deputy Editor of ClimateWire, Washington's leading source of news on climate change and energy policy.2,144 followers | Follow
Diane Castle
Author of Black Oil, Red Blood. The most powerful industry in the world is also one of the most dangerous. Attorney Chloe Taylor is about to find out why.2,139 followers | Follow
Lily Champion
Liberal-Environmentalist-Christian-activist-natural health- Most tweets on Progressive politics-anti-nuclear-environment-health-saving species/animals #CTL #p22,121 followers | Follow
Appalachian Voices
Appalachian Voices brings people together to solve the environmental problems having the greatest impact on the central and southern Appalachian Mountains.2,100 followers | Follow
DamascusCitizens.org
A mission to protect the upper delaware basin, NYH20, PA and Environment against the hazards of gas drilling2,065 followers | Follow
PostGrowth Institute
For a world focused on better, not bigger! http://facebook.com/postgrowth or http://postgrowth.org. Organizers: http://freemoneyday.org (@freemoneyday)1,911 followers | Follow
iLoveMountains.org
1,829 followers | Follow
Whit Jones
environmental justice. the golden rule. grassroots organizing. bikes. power shifting.1,813 followers | Follow
Jeff Goodell
Author of How to Cool the Planet and Big Coal, among other books. Contributing Editor, Rolling Stone.1,740 followers | Follow
Third Way Energy
Third Way - The Clean Energy Program - Shaping a clean energy revolution1,737 followers | Follow
jason king
landscape architecture + urbanism posts from L+U and veg.itecture plus a sprinkling of random thoughts1,676 followers | Follow
Miki Wright
Graphic Designer, Artist, Cook, Urban Farmer, Chicken Herder, Avid Reader, interested in ecology and food ethics1,636 followers | Follow
Sierra Club
Working to restore and protect the Great Lakes! Find news and fun facts about Great Lakes issues and concerns.1,621 followers | Follow
SmartPower_org
SmartPower is the nation's leading nonprofit marketing firm dedicated to promoting clean #energy and energy #efficiency. Let's get energy smart!1,604 followers | Follow
The Green Desk
UK’s ONLY social enterprise in eco office supplies. Campaigning for a Greener, Greater Britain by championing local green manufacture and boosting your CSR.1,594 followers | Follow
Mary Anne Hitt
Wife and mom, Director of Sierra Club's Beyond Coal Campaign, lover of mountains, rivers, music, dogs, good food, simple pleasures.1,563 followers | Follow
Daniel J. Weiss
I am Senior Fellow & Director of Climate Strategy at the Center for American Progress Action Fund.1,534 followers | Follow
♋ Flav0ur ♋
STAUNCH GMO OPPONENT ©RSS Feeds, i ate the red pill and the blue pill @ the same time1,532 followers | Follow
Apollo Alliance
Apollo Alliance is working to catalyze a clean energy revolution that will put millions of Americans back to work.1,501 followers | Follow
ClimateWeekNYC
We share #CleanRevolution stories from NYC, North America & more. See last years Climate Week NYC's highlights http://ow.ly/6W1K01,460 followers | Follow
Jon Warnow
350.org web director & co-founder | student of scalable solutions1,400 followers | Follow
PamelaDrew
Muckraking under the radar & back into toxic history ~ tracking the politics, legislation, science and spin surrounding gmo foods since 1997.1,392 followers | Follow
Edelman Cleantech
From Edelman's Clean Technology team. @kkupiecki & @joeymarquart1,368 followers | Follow
chris eaton
@GreenpeaceUSA Social Media Strategist. I like social media, social movements, diversity, ecology, equality, signals, noise, & insurrection. tweets are nobody's1,361 followers | Follow
Technoport
Promoting green design, technology and research. Sharing possibilities towards the green economy! Facebook (norwegian): www.facebook.com/Technoport1,356 followers | Follow
Solar Power Info
1,347 followers | Follow
Andrew Morrison
Andrew is a world wide industry leader in straw bale construction education and consulting.1,238 followers | Follow
Warner Mendenhall
Akron Ohio law firm and offices of Warner Mendenhall, Attorney.1,224 followers | Follow
Occupy Monsanto
Time to Label GMO's. Organize! Stop dumping chemicals to grow food! Occupy Monsanto Everywhere Sept 17, 2012 #GMO917 #Occupy917 #Occupy #OWS #GMO #Monsanto1,188 followers | Follow
GP Activist Network
An alliance of passionate volunteer leaders taking bold action to protect the planet!1,172 followers | Follow
RichardGraves
Richard Graves founded Fired Up Media[.com] to help youth people from around the world tell their stories from the frontlines of global warming.1,164 followers | Follow
Earth Made Simple
Making the Earth a better place through simple living and helping the environment.1,146 followers | Follow
billyparish
co-founder of @SolarMosaic and @EnergyAction and author of @mkngood (www.makinggood.org)1,124 followers | Follow
Resources f/t Future
RFF is a #nonprofit and nonpartisan organization that conducts independent #economic #research on #environment, #energy, and natural resource issues.1,112 followers | Follow
Joshua Nelson
We're in a #postgrowth world. I'm a Writer/Activist, Web Developer, Engineer, Vegetarian, Steady Stater, Revolutionist, Meadmaker, Father, Small-Is-Beautifulist1,110 followers | Follow
Kid Crouton
Just another food eater with an interest in clean air breathing. Dabbles in safe water drinking.1,099 followers | Follow
jessytolkan
Change maker, trouble maker, progressive warrior, fearless fighter1,089 followers | Follow
Shannon Springer
Passionate in the ability to implement large-scale system level change in the relentless movement towards a sustainable future.1,058 followers | Follow
ItsGettingHotInHere
968 followers | Follow
Moore Environmental
The Coal War is fought with willow trees and imagination.960 followers | Follow
boyd cohen
Boyd Cohen, Ph.D., co-author of Climate Capitalism, Director Center for Entrepreneurship @ UdeSA. Smart cities contributor to Fast Company.958 followers | Follow
Nana Silvergrim
Ahoy there! I be hoist'n th' Folly Roger on the planetary work machine! Work to live, not live to work!952 followers | Follow
Mountain Action
Mountain Justice is a coalition fighting coal surface mining in Appalachia while also working to create diverse and sustainable economies in this region.945 followers | Follow
Rebecca Tarbotton
Executive Director of Rainforest Action Network- working to protect forests, communities and climate. Love kayaking + good whiskey...And I'm Canadian.917 followers | Follow
Daphne Wysham
Fellow @IPS_DC. Thinking outside the box on system change, climate change and GDP issues. Soccer mom. Indiaphile.879 followers | Follow
SPREAD 2050
A Forum for Action on Sustainability, Intrapreneurship & Innovation. Part of the SPREAD Sustainable Lifestyles 2050 European social platform project.847 followers | Follow
Drilling Down
Environmental Working Group press secretary Leeann Brown on natural resource extraction and its impacts on our health & the environment.782 followers | Follow
Jennifer Dillon
Ecomom,Wind power worker, Want to make the world a better place.761 followers | Follow
kaeriey hutchinson
definitely into being green, eating locally & organic, and love creating new recipes!705 followers | Follow
Béatrice Jaud
Productrice de TOUS COBAYES - Nos enfants nous accuseront -Severn. Contre OGM, nucléaire...704 followers | Follow
Lesley Masters
Senior Researcher at the Institute for Global Dialogue, focusing on environmental diplomacy. (opinions are my own)675 followers | Follow
Anjali Appadurai
'You know that you were born for something more than what machines provide...'655 followers | Follow
Lisa Madry
Campus Field Dir for the Natl Wildlife Federation. Tweeting on climate news, clean energy, with some birding, music and other musings just for fun!618 followers | Follow
Dirty Fuels at FOE
611 followers | Follow
Liz Veazey
fighting for clean energy, climate justice and increased youth leadership580 followers | Follow
EnvironmentalCouncil
The Michigan Environmental Council (MEC) is a charitable organization working to provide a voice for the environment at the local, state and federal level.576 followers | Follow
ProjectGreenHome
A single family dwelling currently under construction, Project Green Home is designed with the goal to be a beyond platinum LEED, zero-net energy, passive house573 followers | Follow
Blueprint America
PBS reports on Infrastructure and Transportation: If it moves, it's news...567 followers | Follow
Just and Stable
We are Students for a Just and Stable Future, a New England-based organization campaigning for real and serious solutions to global climate disruption.564 followers | Follow
Linda Pentz Gunter
Parent, partner, environmentalist, animal lover, burgeoning short filmmaker.548 followers | Follow
Kristen Nicole
ecocentric theorist and solar enthusiast. working on solar grid integration at EPRI. tweets and opinions are my own.467 followers | Follow
grandcanyon watchdog
Making certain all voices are heard on critical debatesshaping the future of the gateway to the Grand Canyon. visit us on facebook http://on.fb.me/htbI5o458 followers | Follow
Beyond Coal Michigan
The Sierra Club MI Beyond Coal campaign is moving MI to a clean energy future! Follow us on Facebook too at www.facebook.com/BeyondCoalMI.457 followers | Follow
Vertical Theory
Vertical Theory is an ongoing vertical farming project created by industrial designer and glass artist, Karen MacKay (@kmackay).455 followers | Follow
Craig S. Altemose
Working to build consensus on a better future. Cynical Idealist. Working for you, whether or not you know it.384 followers | Follow
Liz Walker
Founder and Executive Director of EcoVillage at Ithaca. Author of new book, Choosing a Sustainable Future: Ideas and Inspiration from Ithaca, NY383 followers | Follow
Stephen Messenger
American writer and linguist based in Porto Alegre, Brazil. Covers environmental issues for @TreeHugger. A self-taught violinist and annoyer of neighbors.362 followers | Follow
Patricia Kok
Raging liberal eco geek who lives in an off grid home(solar and wind) on 16 acres in RED country. Weary of the STUPID, #Obama2012, #P2, #TFY #teamuterati361 followers | Follow
Will Bugler
Good at systems #resilience and #climate policy. Working for @Acclimatise climate #adaptation consultants. Founder of @Get_Resilient. These tweets are my own.323 followers | Follow
GMO Free SoCal
This is a Southern California based Non-GMO action group that works together to help educate and work toward a Non-GMO future.319 followers | Follow
Harvesting Wind
Harvesting Wind Support. Providing a voice and support for wind energy development for Southwestern Ontario.315 followers | Follow
[Earth in Brackets]
@collegeatlantic students participating in the global environmental political process at the UN. We tweet, we blog, we shout. Many views, not all the same.314 followers | Follow
Sheep Mtn Alliance
Sheep Mountain Alliance is a grassroots citizen organization dedicated to preserving the natural environment in the Telluride Region of Southwest Colorado.301 followers | Follow
Imagination Station
Renovation, innovation, imagination, and various other -ations. Come to Michigan Central Station and look left. Hi!263 followers | Follow
Scott Jacobs
the earth, food and startups are my bag // san fran is my spot // co-founder of mckinsey cleantech and a few real startups to pay the bills214 followers | Follow
Jim Kessler
Co-founder & Vice President for Policy, Third Way. Father of Liberty. Wonk.206 followers | Follow
Suzanne Struglinski
Press Secretary at the Natural Resources Defense Council.158 followers | Follow
ISF_Hamburg
I (21) support @iansomerhalder 's #ISF! Save our planet 'cause EVERYBODY has a choice&voice! Go for nature,animals&kids! Check out:http://www.isfoundation.com/134 followers | Follow
Paolo Solano
Lawyer and bike rider, with interest on politics and sustainability128 followers | Follow
Sofi Sustain
My interests are to Sustain/conserve/protect/recycle/reforest/reuse97 followers | Follow
Blair Mountain
68 followers | Follow
