Nature
Greenpeace
We're an independent global campaigning organisation acting to change attitudes and behavior, to protect the environment and promote peace.490,946 followers | Follow
paul steele
Enjoying the outdoors, mountains challenges. Sharing Travel, photography, and more. Travel Blogger at BaldHiker.com and VisitBritain. Contributor at HuffPost265,616 followers | Follow
TreeHugger.com
Links, Ideas and Conversation from the TreeHugger hive mind, the latest in modern green.169,627 followers | Follow
EcoInteractive
Eco Preservation Society: Inspiring Action, Empowering People,Connecting Communities & Transforming the Planet through Conservation, Reforestation & Education160,869 followers | Follow
BP Public Relations
This page exists to get BP's message and mission statement out into the twitterverse!155,364 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.119,559 followers | Follow
National Wildlife
National Wildlife Federation works to inspire Americans to protect wildlife for our children's future. Staff updating: @starfocus @rarewildlifeguy @ksuzj89,514 followers | Follow
Steve Momorella
Providing real-time news about green energy and the environment.66,468 followers | Follow
Jerry James Stone
Love food, wine and cars! 2012 @ShortyAwards winner in #green. @ClineCellars Chef. Byline at @Discovery, @TreeHugger. Tweets are green, geeky or just plain odd.46,603 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/unclewade35,472 followers | Follow
National Parks News
National Parks Conservation Association protects our national parks for our children & grandchildren. Retweets or links do not constitute endorsements.34,983 followers | Follow
Chris Ingham Brooke
For environmentalists who don't take themselves too seriously29,755 followers | Follow
Kate Sheppard
Reporter at Mother Jones covering energy, environment, reproductive rights, etc. Contributor with Current's Countdown. Also like: running, bikes, books.29,203 followers | Follow
NewHorizon Dive Sail
Great Barrier Reef Trips; Fun Small Groups, Scuba Diving, Snorkeling & Sailing with an Eco Friendly Focus, Cairns, Australia with Tony & Dara27,387 followers | Follow
BullsandBeavers
The premier online resource for outdoor sportsman,hunting,fishing,news & social network. Where men & women connect to pursue their outdoor passions. #TopDog5025,801 followers | Follow
Mother Earth News
The Original Guide to Living Wisely: Organic Gardening, Homesteading, Renewable Energy, Sustainable Food & Farming, DIY, Green Homes, Natural Health & More24,958 followers | Follow
Yahoo! Green
The official account of Yahoo! Green. We’ll be tweeting about how you can improve your life and improve the world.22,123 followers | Follow
Philippe Cousteau
Social entrepeneur, TV Host, CNN special correspondent, explorer, member of legendary family and CEO of EarthEcho International and Azure Worldwide.21,792 followers | Follow
David Roberts
Seattleite transplanted from Tennessee; now blogging for Grist about energy politics. Climate hawk, deficit dove.20,665 followers | Follow
David E. Guggenheim
Marine scientist, conservation leader, sub pilot, speaker, educator, author. Sr. Fellow at The Ocean Foundation. Host, The Ocean Doctor http://oceandoctor.org17,960 followers | Follow
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!17,872 followers | Follow
Clean Cheap Energy
Clean, Cheap, Secure and Plentiful Energy: finding best practices, people & business can save money & energy through energy efficiency & technology14,473 followers | Follow
Peter Kobel
Writer, author, advocate for environmental, economic and social justice.12,880 followers | Follow
ZEROGreenhouse
Founder/Chair-Greenhouse Neutral Foundation, Author Zero Greenhouse Emissions http://bit.ly/17b0u6 also @Bob_Williamson11,334 followers | Follow
dusty gedge
biodiversity professional, green roof campaigner/designer,public speaker, ecosystems services and green roof trainer - indigenous people + justice11,283 followers | Follow
Fabien Cousteau
Eldest grandson of Jacques Yves Cousteau, Fabien continues the legacy and mission of exploration, media production, environmental advocacy and plantafish.org10,147 followers | Follow
Solargroupies
Glenn Fay, Jr. LoveEarthAlways.com photography, nature, wellness, clean energy and common sense. Facebook.com/LoveEarthAlways and /Solargroupies10,010 followers | Follow
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.9,592 followers | Follow
Charles Darwin
Geologist, naturalist and gentleman. On board The Beagle with Capt Fitzroy on a voyage around the world9,539 followers | Follow
Bryan Walsh
senior editor for TIME International, & enviro blogger. RTs are not automatically approvals. Usually context helps.8,694 followers | Follow
CampingBlogger
I help parents experience the great outdoors with their kids.7,745 followers | Follow
RarePlanet
Rare is an international NGO that designs community-based solutions to global conservation challenges. Conservation is about people.7,142 followers | Follow
Hiking Lady
HikingLady.com: Hiking, backpacking, camping, trekking, and outdoor adventure!6,999 followers | Follow
Osha G. Davidson
Freelance writer/photographer, author, & Sonoran desert rat. Current project: What the US can learn from Germany's renewable energy economy. Member, SEJ.6,335 followers | Follow
Joanna Yarrow
Explorer of 21st-century sustainable living. Writer, broadcaster, consultant, director of @wildernesswood & founder of @beyondgreenuk.6,316 followers | Follow
Darryl Lombard
Gardener, graphic designer, artist, writer, photographer, foodie, blogger. Day job: responsible tourism development & marketing consultant6,314 followers | Follow
Beth Buczynski
Freelance writer, editor, and green brand advocate. Passionate about coworking & collaborative consumption. Skier. Tea lover. Zombie movie watcher.6,139 followers | Follow
MrBrownThumb
Chicago garden blogger at @TreeHugger & @ChicagoNow Latest article for Tribune newspapers on plant sales http://is.gd/0oOd2P5,990 followers | Follow
Dan Roberts
Founder of Queenstown Innovation Centre, TravelGeneration.com and NZbyBike.com. Strategic Designer at Xebidy.com. Public speaker and online travel marketer.5,851 followers | Follow
US-Parks.com
National Parks Travel: #NationalParks #RoadTrips, #OutdoorGear, #Nature & #Wildlife, #Hiking, #Photography, #Lodging, #Camping & #Outdoors. fb.com/usparkscom5,759 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
Bird Lovers
Obsessed with bird watching. Love the Pileated Woodpeckers in North WI.5,739 followers | Follow
John Howley
Sustainable Energy CEO. Educator. Author. Speaker. Loving every minute.5,336 followers | Follow
Bird-Rescue.org
International Bird Rescue has been saving aquatic birds since 1971. Its team has led oiled bird rescue efforts in over 200 oil spills in more than 12 countries.5,295 followers | Follow
Sailors for the Sea
Educates and engages the boating community in the worldwide protection of the oceans. Galvanizing the boating community around ocean conservation.5,284 followers | Follow
Trimble Outdoors
We tweet about hiking, geocaching, GPS trips + the latest Trimble Outdoors news. For cycling trips follow @AllsportGPS5,108 followers | Follow
Mark Avery
Independent environmental expert specialising in nature conservation. Author and commentator. Formerly RSPB Conservation Director5,001 followers | Follow
Lisa Vickers
Ecocentric activist. Global Campaigner @Avaaz. Usually tweeting about environmental, social and political change & my dog. Opinions are only mine.4,996 followers | Follow
Steve Creek
Steve Creek is a Arkansas-based wildlife photographer specializing in the wildlife found in Arkansas and Oklahoma. http://bit.ly/z7H4Z4,887 followers | Follow
Sharon Stiteler
Got a question about wild birds? Ask me! I'm an Avian Field Ecologist which means that I get paid to go bird watching.4,838 followers | Follow
Don Maiden
Photographer, from Warrenton, Va. in Fauquier County, Virginia. Obsessed with birds,birdwatching,nature&wildlife photos,action photography,sports!4,804 followers | Follow
Celine Cousteau
Documentary Filmmaker- Exploring social, cultural, and environmental issues through the human relationship to the natural world.4,765 followers | Follow
Kathe Garbrick
animal welfare, environment, sustainability, social justice, locavore, slow food, gardening, lgbt, atheist; all things cat4,718 followers | Follow
DivingList
Hi, I'm DivingList. I'm here to spread the word & dive news to Divers.4,498 followers | Follow
Robert Smith
Erstwhile Staff Arborist, Arbor Day Foundation. Together we can help plant and care for trees.4,484 followers | Follow
Ron Wolford
University of IL Extension Chicago Urban Horticulture Educator for 28 years,Urban Agvocate,82nd Airborne Vietnam Combat Vet,proud parent of a Juilliard grad4,374 followers | Follow
AFreeMansLife
biodiversity climate environment water forests energy csr politics human rights4,299 followers | Follow
ClientEarth
Justice for planet Earth. Environmental law charity for forests/ marine environment/ eco rights/ biodiversity/ climate/ csr/ air pollution/ REACH UK EU + beyond4,146 followers | Follow
Oil and Mining Watch
giving you the good oil on the bad practices of oil & mining operators big or small4,072 followers | Follow
Stephanie Pearson
Writer, Contributing Editor to Outside, Contributing Writer to Discovery.com, Traveler, Aspiring Birder3,830 followers | Follow
NaturalAsPossibleMom
Professional editor, writer, blogger, moderator; author of NaturalAsPossibleMom.com #green #eco #food #energy #SmallBiz #technology3,792 followers | Follow
Dr. Sarah Warren
Psychologist,unlikely environmentalist,mom,career coach;founded Spheres of Influence;wrote Fierce Love:How One Mother Reinvented Herself by Saving the Planet.3,791 followers | Follow
Animal Law
A fresh take on animals and law. Tweets by Lee Hall, VP - Legal Affairs, Friends of Animals (animal-advocacy non-profit established in New York, 1957).3,791 followers | Follow
Jim Braswell
I am a member of the Great Plains Nature Photographers (GPNP) and of the North American Nature Photographers Association (NANPA). Also a Master Gardener.3,779 followers | Follow
Kate Martin
Purveyor of Groovy News. ~ I could not,at any age,be content to take my place by the fireside and simply look on.Life was meant to be lived. ~ Eleanor Roosevelt3,759 followers | Follow
Dave Macaulay
Writing about living buildings, eco cities, restorative landscapes, biomimicry and the leading edge of green architecture.3,644 followers | Follow
Sandy Guerriere
Green Eco Communities - Sustainability of the Planet begins at home. ~ Become the change you want to see in the world.3,608 followers | Follow
Ben Gustafson
NAHC & NAFC Social Media Editior, Outdoor Blogger, Husband, father,Avid Hunter, Fisherman & Social Media Consultant3,533 followers | Follow
Julie Bowman
Adirondack Chic who Luvs the Outdoors; hunting, fishing, hiking, biking, swimming, golf, traveling. Connect with me!!3,429 followers | Follow
USWildflowers.com
Gerry Williamson: I'm learning to identify wildflowers of the United States and am sharing what I learn as I go.3,294 followers | Follow
biodiversity2010
International Year of Biodiversity in the UK. Science and arts events, talks, initiatives + exhibitions.3,207 followers | Follow
British Bird Lovers
British Bird Lovers is dedicated to anyone who enjoys caring for and observing wild birds. Like us on Facebook https://www.facebook.com/BritishBirdLovers3,198 followers | Follow
Linda Rockwell 鳥の写真
Lawyer, social birder, casual photographer, dog lover, inspired cook, New Mexican. 鳥の写真3,177 followers | Follow
Orion Grassroots
We track grassroots efforts to make ecological, social, and cultural change worldwide. A project of Orion magazine.3,172 followers | Follow
Akanaphotography
Photographer, biker, hiker, father, animal lover, bully hater, totally warped humor, Tim Hortons coffee. Travel. Green Thumb with a bent digit.3,013 followers | Follow
Nigella Hillgarth
Executive Director, Birch Aquarium at Scripps; committed to the future of our Ocean, our Planet3,000 followers | Follow
Billy Goodnick
Santa Barbara landscape architect, tv host, teacher, writer, drummer - whew!2,856 followers | Follow
Cindy Francine Bruno
Oklahoma girl who luvs the Ocean,marinelife,surfing& collecting shells. Everything is connected. Ocean is not far(minus Texas),Luv 2 tweet& chase tornadoes2,820 followers | Follow
Carole Sevilla Brown
Ecosystem Gardening:creating welcoming habitat for wildlife Author, educator, speaker, Avid birder/butterflyer. Also tweet at @WildlifeGarden and @PlantNative2,786 followers | Follow
MT N Hellfire
Applied Geophysicist | Liberal ranch girl who loves wolves | Greeny enviro working in energy exploration | Slave to dogs and chickens2,712 followers | Follow
Jim Davidson
Co-author of epic survival memoir The Ledge: An Adventure Story of Friendship and Survival on Mount Rainier. Resilience expert, speaker, climber.2,622 followers | Follow
TEDxOilSpill
TEDxOilSpill was held June 28, 2010 in Washington DC. Watch Online: http://tedxoilspill.com/live2,592 followers | Follow
Oil Spill Updates
Gannett's Multi-State Coverage of the Gulf Coast Oil Spill. Reports from Alabama, Florida, Louisiana, Mississippi and more.2,521 followers | Follow
Graham Readfearn
Journo writing stuff on climate change, denial and the environment. Blog http://bit.ly/cgXyBw The Drum http://bit.ly/vEpWC6 and @DeSmogBlog http://bit.ly/sSti5k2,411 followers | Follow
Eileen / Rockgrrl
Climber, outdoors gal, graphic designer (check out my shop @ rockgrrl.com), photographer, writer, geek, gamer, 1st-4th #JTreeTweetup Organizer.2,398 followers | Follow
Neil Phillips
Wildlife Photographer + naturalist. I give wildlife talks too.2,395 followers | Follow
CitizensClimateLobby
Citizens Climate Lobby: Creating the Political Will for a Livable World. Tweets by Steve Valk2,294 followers | Follow
B. Hawkins
Inspiring environmental stewardship through education to improve, protect and beautify our backyard wildlife habitats.2,230 followers | Follow
DeLene Beeland
Independent science writer atwitter about nature and the great outdoors. Author of The Secret World of Red Wolves (UNC Press; 2013).2,115 followers | Follow
Ryan Dionne
Editor of @SkiingBusiness, former gear reviewer, lifelong adrenaline junkie.2,099 followers | Follow
Claire Brown
Expert Gardener and plant advisor, I love gardens, my family and too much food!2,079 followers | Follow
Kelly Senser
Nature-loving mom with passion for wildlife gardening, photography and outdoor play. Program manager at National Wildlife Federation.2,055 followers | Follow
Jason Quail
I'm an ECO Super Hero Saving the Planet in my solar car. Volunteering every weekend, teaching kids & host of Green Tech Weekly! ReThink It Green!1,941 followers | Follow
Ivette Soler
The Germinatrix: Garden Designer/Blogger/Plant Maniac - bent on world domination via gardening ...1,913 followers | Follow
Justin Gerdes
Freelance writer, energy and the environment. Contributor, @Forbes; Contributing Writer, @SantaClaraMag; formerly Reporter, @ClimateOne; Member, @SEJorg.1,823 followers | Follow
Suzy Gneist
Single Mum/Graphic Designer spends her free time on Nature, Permaculture & Sustainability - http://exquisitemoments & http://theseedsofthought.wordpress.com1,780 followers | Follow
Maggie Romuld
River scientist, college geography instructor, watershed project planner, science junkie, mom, RTer of all things eco, bio, geo or fluvio, devil's advocate...1,743 followers | Follow
exploreanimals
Daily stories about animals from explore.org, a non-profit organization dedicated to championing the selfless acts of others.1,715 followers | Follow
Christof Heinrich
Journalism professor who cares deeply about the environment and who sees EV-solar synergy as crucial to a greener world. Web site = SolarChargedDriving.Com.1,654 followers | Follow
Valerie Harrison
Passionate about wildlife owner Wildforms Gardening for Wildlife. I live on the beautiful N Rhins, Dumfries & Galloway. 10% off voucher code TWITDISC1,650 followers | Follow
Jess Keating
Author (MG, YA), zoologist, and artist. I'm repped by the amazing @KatRushall of MLLA. Often wrangling words or creatures.1,618 followers | Follow
Amanda Little
Author of POWER TRIP: The Story of America's Love Affair With Energy1,601 followers | Follow
Dan States
I was a photographer, but my life got out of control and I need to rethink it all-rec. you follow outtabalance1 on here. Sorry to those I let down.1,572 followers | Follow
Crystal Thornton
Life is just a tire swing: birder, photographer, park ranger, wildlife lover, Jeeper, beacher, camper, four-wheeler, butterfly chaser.1,515 followers | Follow
MIDKNIGHT6
An internet activist that passes information within the CLOUD. Mostly enviornmental awareness. "The greatest danger to our future is apathy."1,511 followers | Follow
Riverbanks Outdoor
Riverbanks Outdoor Adventure Florida: We outdoor enthusiasts that like to hike, bike, and paddle. We like to inspire everyone to Get Out and Play!1,493 followers | Follow
Donna Dawson
Tour operator, travel writer, master gardener, Canadian living in Panama1,483 followers | Follow
Pat Bumstead
Naturalist. Geek. Birder. Writer. Not necessarily in that order.1,336 followers | Follow
Kristen Honey
Marine biologist & interdisciplinary environmentalist. Originally from Maine, now NorCal. Stanford PhD Candidate. Work hard-play hard: sail,surf,ski,trek,travel1,309 followers | Follow
Charlie McElwee
Climate Change Policy Aficionado & China Environmental and Energy Law Scribbler1,302 followers | Follow
Elizabeth Hargrave
Plants, animals, and wild places in the Washington, DC area: a true wealth of nature. Watch the seasons unfold with us.1,260 followers | Follow
John Harrison
Enjoy hiking and taking fine art nature and landscape photography in Yosemite National Park. Half Dome, Yosemite Falls, Bridalveil Falls. Moons and Waterfalls!1,052 followers | Follow
GlobalWarming.org
The Cooler Heads Coalition. We debunk the myths of global warming by exposing flawed economic & scientific analysis.995 followers | Follow
Kolby Kirk
A hiker, photographer, writer, far-reaching goal maker who is constantly mistaken for a bear, even in the city.980 followers | Follow
Wildlife Rescue Unit
The Australia Zoo Rescue Unit provides a free service to the community to rescue sick and injured wildlife and get them the best possible veterinary treatment.873 followers | Follow
Kristina Summers
Mom, writer, blogger, PR Specialist, social media guru, superhero, conservationist, activist and all around nutty but loyal individual.760 followers | Follow
Plastic Manners
Together we can end plastic polltution and its toxic impacts on humans, wildlife, and our environment.655 followers | Follow
Heirloom Cntry Farms
A family farm in N FL raising multiple grassfed meats & eggs, w/o chemicals. Order here!609 followers | Follow
Jeff Grewe
I own Arbor Aesthetics Tree Service: tree climber; photographer; lover of the natural world.550 followers | Follow
Andrea Friedman
Climate/energy policy wonk, geologist, wordsmith, public servant, enthusiastic generalist349 followers | Follow
Larry West
Award-winning journalist covering environmental issues for About.com333 followers | Follow
Piers Storey
Passion for building climbing walls at home.. Love bouldering, love climbing.284 followers | Follow
Gregg Bleakney
Visual Journalist = Travel and Find Stuff + Photo, Write, Tell Stories271 followers | Follow
Patrick Wylie
Post-modern forester interested in all things forest: industry, global enviro, climate and REDD247 followers | Follow
Gene Kitts
104 followers | Follow
Tags:
green environment liberal progressive activists women children climate sustainable activism eco indigenous socialjustice humanrights hcr p2
