#1

EcoInteractive EcoInteractive 81,703 followers (57 on this list)
Bio Eco Preservation Society: Inspiring Action, Empowering People,Connecting Communities & Transforming the Planet through Conservation, Reforestation & Education
Location Costa Rica
Web http://unhub.com/EcoI...
Other lists:  conservation, nonprofit

#2

operationcarbon operationcarbon.org 36,801 followers (31 on this list)
Bio Engaging, educating and empowering individual accountabilty in the wake of global climate change. ☆Tracking all things green☆
Location 
Web http://www.operationc...
Other lists:  eco, global-warming, green!

#3

TreeHugger TreeHugger.com 32,930 followers (62 on this list)
Bio Links, Ideas and Conversation from the TreeHugger hive mind, the latest in modern green.
Location Global.
Web http://www.treehugger...
Other lists:  design, green, sustainability

#4

Regoog_dotcom Regoog.com -Go Green 28,289 followers (13 on this list)
Bio The environment will not improve unless YOU do something about it. Find out above the easiest ways you can support the green cause!
Location Australia
Web http://regoog.com
Other lists:  energy, environmentalist

#5

The_RHS RHS 27,143 followers (3 on this list)
Bio The Royal Horticultural Society is the world's leading gardening charity with renowned campaigns, gardens & shows; dedicated to sharing the best in gardening!
Location United Kingdom
Web http://rhs.org.uk
Other lists:  charity, gardening

#6

EcoPreservation Eco Preservation Soc 23,181 followers (41 on this list)
Bio Eco Preservation Society: Conservation, Reforestation and Education. We bring it together. Get conected, Get Involved, Make a difference.
Location Costa Rica / Seattle / Chicago
Web http://ecopreservatio...
Other lists:  conservation, education

#7

energysection Energy Section 23,061 followers (11 on this list)
Bio The Source for Renewable Energy Resources and News
Location Earth
Web http://energysection....
Other lists:  energy, renewable-energy

#8

Greenpeace Greenpeace 21,690 followers (40 on this list)
Bio We're an independent global campaigning organisation acting to change attitudes and behavior, to protect the environment and promote peace.
Location Global
Web http://www.greenpeace...
Other lists:  environmentalist, green, nonprofit

#9

earthhour Vote Earth 18,081 followers (24 on this list)
Bio Tweeting for Earth Hour: Andy Ridley, EH Exec. Dir, Cofounder; JJ, EH Social Media. EH Copenhagen Team: Eskil Holten Haargaard (EH), Lise Hoffmeyer (LH)
Location Global
Web http://www.earthhour....
Other lists:  eco, green

#10

nature_org Nature Conservancy 15,913 followers (55 on this list)
Bio The Nature Conservancy welcomes you to its official Twitter site! We're a leading conservation organization working for people and nature.
Location 32 countries on Planet Earth
Web http://nature.org
Other lists:  conservation, nature, nonprofit

#11

YesWeChange ► YES WE CHANGE ◄ 13,604 followers (3 on this list)
Bio Tweets for eco-social change.
Location Germany

Other lists:  social

#12

HealthBrand Health Brand 12,830 followers (2 on this list)
Bio Support Brands for Health, Wellbeing, Medical, Natural Therapies
Location  » http://xm.my/5oe8
Web http://twitter.com/He...
Other lists:  exercise, health, medical, naturaltherapies, nutritional, pandemic, recipes, weightloss, wellbeing

#13

wwwfoecouk Friends of the Earth 12,740 followers (26 on this list)
Bio Friends of the Earth campaigns for solutions to environmental problems.
Location London, UK
Web http://www.foe.co.uk
Other lists:  green, greenliving

#14

hyperlinear Jeff 12,533 followers (6 on this list)
Bio Doing my bit to help the planet and some people's health along the way. I dream of wires & follow back. Aion gives me wings!
Location Music City USA

#15

Sierra_Magazine Sierra_Magazine 11,824 followers (37 on this list)
Bio Green and eco tips and news from the editors of the Sierra Club’s magazine. Explore, enjoy, and protect the planet.
Location San Francisco, CA
Web http://sierraclub.typ...
Other lists:  editors, green

#16

PlanetGreen PlanetGreen.com 11,575 followers (38 on this list)
Bio 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.
Location Global
Web http://planetgreen.co...
Other lists:  diy, green, greenliving, sustainability

#17

SeventhGen Seventh Generation 10,827 followers (23 on this list)
Bio Seventh Generation is committed to being the most trusted brand of household and personal-care products for your living home.
Location Burlington, VT
Web http://www.seventhgen...

#18

travelinggreen travelinggreen 10,826 followers (27 on this list)
Bio Editor of traveling greener. Green travel and living blogger.
Location 
Web http://www.travelingg...
Other lists:  green, travel

#19

the_daily_green thedailygreen.com 10,316 followers (34 on this list)
Bio The consumer's guide to the green revolution
Location New York, NY
Web http://www.thedailygr...
Other lists:  green

#20

mqtodd Twestival Tokyo 25/3 9,767 followers (49 on this list)
Bio Hi! I`m Michael. Kiwi wannabee Karaoke Star, a Slowly Recovering Lawyer & know it all.Daily Juggler with attitude. Into #EarthDay40(@Eday40)& #TwestivalTokyo
Location Tokyo but heart forever in NZ
Web http://www.facebook.c...
Other lists:  blogging, eco, green, health, japan, linkedin, marketing, socialmedia, sustainability