Tree Huggers
Scientific American
Scientific American Magazine and online, over 165 years of science news366,689 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.119,103 followers | Follow
Pacific Islands NPS
Experience YOUR National Parks every day! Aloha, Talofa, & Hafa Adai! (Note: Following, Mentions, etc do not necessarily = endorsement)98,891 followers | Follow
Viking Services
Everything related to alternative energy, solar, wind and geothermal81,175 followers | Follow
Michael Sprague
Water holds a kind of magic. It calms us. It lifts us. Ultimately it sustains us.50,110 followers | Follow
MyWindPowerSystem
MyWindPowerSystem.com are the No. 1 Wind Turbine Brokers on the net and are dedicated to renewable and alternative energy tech news with a scientific approach44,202 followers | Follow
Greenpeace UK
Climate, forests & oceans news, the latest on Greenpeace UK campaigns & actions live coverage. Like us on fb.com/GreenpeaceUK & watch youtube.com/GreenpeaceUK39,901 followers | Follow
Eco Preservation Soc
Eco Preservation Society: Conservation, Reforestation and Education. We bring it together. Get conected, Get Involved, Make a difference.33,745 followers | Follow
Kate Sheppard
Reporter at Mother Jones covering energy, environment, reproductive rights, etc. Contributor with Current's Countdown. Also like: running, bikes, books.29,119 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/cNFKN22,372 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.20,262 followers | Follow
American Wind Energy
AWEA is the voice of wind energy in the U.S., promoting renewable energy to power a cleaner, stronger America. On Facebook: http://www.tinyurl.com/AWEAFacebook17,178 followers | Follow
NYTimes Environment
Breaking news and environmental news on the EPA, oceans and marine life, weather, wetlands, pollution, wildlife, global warming, hybrid cars, energy and nature.16,870 followers | Follow
Virginia State Parks
Beautiful locations for outdoor recreation across Virginia14,899 followers | Follow
Derek Markham
Generally green, sprinkled with randomness & slathered with peanut butter. Writer for TreeHugger.com and Discovery. Good man. Skilled shoveler. WordPress lover.13,386 followers | Follow
Peter Kobel
Writer, author, advocate for environmental, economic and social justice.12,860 followers | Follow
Jaymi Heimbuch
Green Technology Editor and writer @TreeHugger. Environmentalist and photography enthusiast.11,862 followers | Follow
Solar Sister
Light. Hope. Opportunity. Using the power of women's enterprise to distribute clean energy technology in rural Africa.11,256 followers | Follow
dusty gedge
biodiversity professional, green roof campaigner/designer,public speaker, ecosystems services and green roof trainer - indigenous people + justice11,254 followers | Follow
PattyHankins
In search of the next beautiful flower to photograph - Does life get any better than this? :-) Author of Wildflower Meditations: A Gift for the Spirit8,884 followers | Follow
Michael G.R.
I work for the Discovery Channel as a Science/Tech/Transportation writer for TreeHugger and Planet Green.8,039 followers | Follow
Baut Images
Contemplative PhotoArt, poetry, Eastern philosophies, metaphysics, human rights advocate. Coordinator #NWCU http://youtube.com/user/gendaikishihan/7,751 followers | Follow
NCAR+UCAR Science
National Center for Atmospheric Research & partners-climate weather meteorology ocean solar physics chemistry environment science education-no endorsements made7,749 followers | Follow
High Country News
An independent news magazine for people who care about the West's environment and people, publishing online and in print media.7,632 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 network7,569 followers | Follow
Henricus Peters
Making conservation connections - about children & Nature, Environmental Education, Playoutdoors and Sustainability. Also at @NAEE_UK. Fuller discussions at7,463 followers | Follow
NRDC Switchboard
This is a feed of posts from NRDC's staff blog, Switchboard. Follow @NRDC on Twitter for more updates.6,842 followers | Follow
Lynn Hasselberger
I Count for myEARTH. Blog + tweets 2 raise awareness + inspire change 4 people + planet. Tweets by founder @LynnHasselbrgr who also tweets 4 her biz @myEARTH3606,824 followers | Follow
Taylor Loftheimer
I am actually a professor. I lecture at a very prestigious Uni I won't name here. The links I post are to my favorite pop-eco media.6,544 followers | Follow
Dennis Schvejda
Former NJ Sierra Club Conservation Director... advancing conservation & protecting the environment via social media.6,442 followers | Follow
Michael Pata
Entrepreneur, Animal Enthusiast, Social Media, Sustainability, Wildlife, Pets, Environment, Aquaculture, Fun6,300 followers | Follow
Joanna Cerazy
Passionate author, researcher, educator, and parent. Co-author of Lead Babies.6,186 followers | Follow
Listening Earth
Add nature to your playlist! nature sound albums, transporting you to pristine, wild places and reminding you of nature's gentler pace of life.5,519 followers | Follow
Green Investment
Sustainable, Renewable and Cleantech Investments. Currently offering Timber/Forestry and Solar Investments5,516 followers | Follow
Carl Black
Life Observer, Sustainable/Organic Lover, Creative, Urban Explorer, Photographer, Volunteer, Writer, Listener, social media monster (per @cl_atlanta)5,297 followers | Follow
Lisa Vickers
Ecocentric activist. Global Campaigner @Avaaz. Usually tweeting about environmental, social and political change & my dog. Opinions are only mine.4,982 followers | Follow
Green Meme
Latest environmental news headlines from news sources and organisations around the web (live feeds).4,721 followers | Follow
Arctic Sea Ice News
Follow updates to the National Snow and Ice Data Center: Arctic Sea Ice News & Analysis. For questions, please visit our Web site.4,557 followers | Follow
Alan Nogee
Clean energy consulting. Former Union of Concerned Scientists Clean Energy Program Director. Tweeting on renewable energy, coal, nuclear, climate.4,254 followers | Follow
Marnie Glickman
Managing Director of the Green Party of California @gpca & Montessori mom4,190 followers | Follow
Paul Jimerson
Artist, Photographer, Environmentalist, Psychotherapist, Former Radio Personality, Animal Hugger, Ocean lover3,820 followers | Follow
Climate Week
Climate Week is a supercharged national campaign to inspire a new wave of action on climate change taking place on 12-18 March 2012.3,647 followers | Follow
B.L. McMillan
4th Gen Florida native, political creature, environmentalist, extensive reader, animal nonprofit, Lion3,386 followers | Follow
Marghanita
Founder of Let's Go Outside Revolution. Children's Author & Illustrator - Nature based books. Mother of 3. Passionate about connecting children with nature.3,331 followers | Follow
John Gaudet
As a young ecologist I was challenged by the study of papyrus swamps in Idi Amin’s Uganda. Once worshipped by ancient Egyptians papyrus needs your help now!3,330 followers | Follow
National Parks Blog
Community blog for all those that love national parks: share photos, tips and finds3,274 followers | Follow
Linda Rockwell 鳥の写真
Lawyer, social birder, casual photographer, dog lover, inspired cook, New Mexican. 鳥の写真3,168 followers | Follow
Marine Conservation
Marine Conservation Institute - protecting ocean life through science and conservation advocacy. RTs not always endorsements, but informational.3,133 followers | Follow
Frances Moore Lappe
writer, world hunger and poverty expert, democracy advocate, author of Diet for a Small Planet, co-founder of the Small Planet Institute3,101 followers | Follow
WildForests
❀ Promoting the UN's 'Decade of Biodiversity' with tweets about forest ecology, conservation of biodiversity & eco-politics. #ancientforests3,066 followers | Follow
SouthMarch Coalition
Dedicated to saving Ottawa's South March Highlands and its species at risk from development. (tweets by Mitch Brisebois)2,966 followers | Follow
Beth Lynn Goldman
Social Entrepreneur & Digital Correspondent. Played Division I College Hoops. Relentlessly Optimistic. Loves Style, Fashion, Culture, & Running.2,879 followers | Follow
Neil Richards
Ran marathons for @savetherhino & @orangutans. Now I care just as much about conservation, just don't run quite so far. New blog for 2011!2,454 followers | Follow
New Energy
Pickens Plan Opportunity - Make money from home and change the Planet2,379 followers | Follow
Karen E McKelvey
Time to step out of comfort zones, to help keep the wonder of our planet alive. What do you say? Let's go make a difference together.2,173 followers | Follow
Yvonne Pembroke
Ex Fashion Designer... Ecologica is an online membership based forum sharing eco/organic tips and product ideas between members.1,972 followers | Follow
EarthFirst.com
A fun, irreverant green blog featuring the latest environmental news, exclusive features, original cartoons and videos.1,961 followers | Follow
Dayna Reggero
Traveling Gypsy. #Eco Spokesperson. #Vegetarian. #Organic. @JerryJamesStone's Tour Manager. @PachasPajamas Promoter.1,920 followers | Follow
Eric Laczi
My Interests Include: wildlife, nature, trees, coffee, beer, supporting local businesses, photography & I love Kentucky basketball. Go Big Blue! #BBN #WeAreUK1,852 followers | Follow
iLoveMountains.org
1,823 followers | Follow
DCEcoWomen
A community of women inspiring each other to create a healthy and equitable society. Our mission is to provide an educational forum for women that's empowering.1,787 followers | Follow
Forest Justice
Forest Justice wants YOU to work with us to have an impact on reducing tropical deforestation. Check us out on www.facebook.com/forestjustice and Get Involved!1,742 followers | Follow
Grace Cunningham
Environmental latte-sipping, public-transit-&-bicycle-riding, urban-living liberal. Loves to dance, cook, and explore creative ways to change the world.1,697 followers | Follow
Ann Ranlett
Artist and Illustrator. Pet Portraits & Animal Art. Detail Freak. Bio-Nerd. Birder.1,577 followers | Follow
Stephen Rene Tello
I am the Executive Director of Primarily Primates, Inc., the oldest primate sanctuary and one of the largest animal shelters in the country.1,411 followers | Follow
Brian Juanhijo
Innovation in Information platforms changes culture, institutions, tools, and economy. Family guy, Socratic Tinkerer, Political. Opinions are mine alone.1,370 followers | Follow
Megan McVey
Conservationist. Social Entrepreneur. Intellectual Enzyme. Yale F&ES grad student. Tweeting for @yalefesclimate.1,359 followers | Follow
Mark Robinson, Ph.D
Bio/comp geek with a passion for wildlife, mountains, whisky, beer and books.1,341 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
Kerana Organic Wines
Premium Vegan 100% Organic Wines From Chile. Certified Organic by IMO Switzerland.1,231 followers | Follow
Shawnna Donop
Nature, outdoors, wildlife, sustainability, gardening, cooking, science, astronomy, green technology, work/life balance, good karma, and B&W cats.1,203 followers | Follow
Casey Trees
Casey Trees' mission is to restore, enhance and protect the tree canopy of the Nation's Capital.1,194 followers | Follow
Jim Penson
Bluegrass musician, teacher. Writer. Single dad, nature lover, barefoot runner. I teach banjo, guitar, mandolin, and bluegrass jamming.1,118 followers | Follow
Karen California
Man belongs to the Earth, the Earth does not belong to Man1,100 followers | Follow
nature.com Boston
Follow us to find out about what's new on the Boston hub on nature.com blogs.1,017 followers | Follow
Robert Glenn Ketchum
#Conservation #photographer, preservation advocate, author and activist who likes to grow flowers. #NoPebbleMine! #LittleBearProd967 followers | Follow
treenation
Tree-Nation is the biggest social network dedicated to trees plantation for a better planet!964 followers | Follow
Joel Lawson
Comms., public policy, foreign affs., media & tech., women's rights, civil rights, LGBT rights, DC activism, photography. That's all...for now.885 followers | Follow
Tuckertown
Earth Inquiry LLC Cross Creek belongs to the wind and the rain, to the sun and the seasons, to the cosmic secrecy of seed, and beyond all to time.852 followers | Follow
Catherine Toft
UC Davis professor of Evolution and Ecology. Ecoblogger and environmental educator.758 followers | Follow
Eco Prophecy
Energy, Environment, Science, Pollution & Portents. Tweets by @OffGridGeek641 followers | Follow
Michael Scott
I am interested in helping people cut their energy bill and save the planet by using solar energy.582 followers | Follow
jim belcher
Editor of the blog CommunityCreatives.org Founder of Transition Orlando. Longtime facilitator/teacher of community and creativity. Active with Occupy Orlando.549 followers | Follow
GreenAdSource
Impact Your Business, Not The Environment. The source for eco-responsible promotional products that will help you leave a lighter environmental footprint.531 followers | Follow
Kathy Chamberlain
DC-area woman with a passion for the arts, nonprofits, reading, economics, urban devel & design, and exploring the world at large319 followers | Follow
Erica Dale Strzepek
New England USA native, #Artist, #WatercolorPainter, #NatureLover, living one day at a time312 followers | Follow
Janak Shah
Passionate about Enviroment Protection, Conservation of Natural Resources,Sustainable growh, Peace and Prosparity for habitat of planet.307 followers | Follow
Terry Miskimmin
MD of Fremantle Timber Traders re environmentally friendly, quality recycled & reclaimed timbers | Mad Dockers supporter - Freo, heave ho!289 followers | Follow
Peter Koll Tamera
networking, peaceworker, humane sustainability - at Tamera Peace Research Center234 followers | Follow
Andrea Contreras
I love animals and being eco-friendly. I'm easy going and try to get along with everyone. I love walking, volunteering at the zoo, and just being me!93 followers | Follow
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green environment liberal progressive activists women children climate sustainable activism eco indigenous socialjustice humanrights hcr p2


















































































































