Environment
National Geographic
Since 1888, we've traveled the Earth, sharing its amazing stories with new generations. Official Twitter account of National Geographic.1,907,263 followers | Follow
Greenpeace
We're an independent global campaigning organisation acting to change attitudes and behavior, to protect the environment and promote peace.490,900 followers | Follow
TreeHugger.com
Links, Ideas and Conversation from the TreeHugger hive mind, the latest in modern green.169,627 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.119,552 followers | Follow
HuffPost Green
Latest environment & energy news, green-IY projects, animal stories & more (contact: huffpostgreen@huffingtonpost.com)97,213 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.87,876 followers | Follow
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 | Follow
MotherNatureNetwork
Environmental news, local foods, innovations, and green inspiration53,153 followers | Follow
Do the Green Thing
An inspiration feed of creative ideas to turn green living from something you ought to do to something that people want to do.35,879 followers | Follow
Solar Energy News
Your source for solar energy news, solar energy products, and the politics of alternative energy and a sustainable future.24,118 followers | Follow
Digg Environment
Got a thing for nature or green tech? Get the best environment stories from Digg delivered to your Twitter stream.23,699 followers | Follow
Home Energy Saver
Do-it-yourself home energy audit - Concrete ideas that save $$ on energy and reduce carbon emissions @ home.23,604 followers | Follow
Marnie Glickman
Activist, mom, former co-chair Green Party of the US, worked as managing director of Green Party of California21,400 followers | Follow
CERC_Columbia
Center for Environmental Research and Conservation - Undergrad Abroad Programs; Executive Education Classes and Certification; Teacher Training; K-12 Education20,969 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.18,874 followers | Follow
Kevin Gulley
Kevin Gulley is the publisher of GreenCollarEconomy.com - dedicated to supporting the business of sustainability18,392 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/18,333 followers | Follow
GreenEnergyInfo
Dedicated to bringing you the most up to date information about renewable energy sources and cutting edge energy generating technologies.17,361 followers | Follow
Green Business
The Green Business Bureau offers businesses an easy to use tool and clear roadmap to become eco-efficient, one step at a time.13,645 followers | Follow
Einstein Energy
A scientific approach to reduce the amount of energy used by residential and commercial consumers. We are an Energy Auditing company in Dallas & Ft Worth.12,851 followers | Follow
Make Solar Panel
Best Energy Saving – How To Save On Home Energy, Make Your Own DIY Solar Panels And Build A Solar Power Energy System.8,868 followers | Follow
Green Nation Gardens
You can retire in 24 months with One24. Join our team, One24 Top Team today!7,690 followers | Follow
Global Water (GWC)
Global Water Challenge is a coalition of groups that together are leading a global movement tackling the water crisis.6,872 followers | Follow
Nature Canada
Meet our team! The people at Nature Canada are bringing you the inside scoop and latest updates on our conservation, outreach and advocacy work.6,763 followers | Follow
UNW World Water Day
Official Twitter account of the United Nations World Water Day!5,607 followers | Follow
GetSolar.com
Matching residential and commercial customers with qualified solar pros. And vice versa. Providing free, personalized service and solar info.5,076 followers | Follow
Solar Roof Expert
Home Town Favorite Roofing Contractor, Solar Roof Expert, Photovoltaic Panel Specialist, Energy Efficient PV Array Installers, Sun Power Roof Tile Technology4,652 followers | Follow
Green Pepper News
Your guide to eco-friendly living and real environmental issues.4,392 followers | Follow
WATERisLIFE.com
Providing personal water filters and wells to children to create immediate solution for preventable waterborne diseases3,781 followers | Follow
Climate News
Climate news bot, maintained by @wesselzweers. Dutch version: @klimaatnieuws.3,713 followers | Follow
carbon brief
Fact-checking on energy and climate from the UK, and some other stuff.3,160 followers | Follow
WildForests
❀ Promoting the UN's 'Decade of Biodiversity' with tweets about forest ecology, conservation of biodiversity & eco-politics. #ancientforests3,080 followers | Follow
BC Home & Garden
BC's magazine for home info & inspiration: from indoors to out, for the big picture and all the beautiful details. Tweets by eds Kristen Hilderman & Carol Pope.2,954 followers | Follow
USC Sustainability
2,397 followers | Follow
zenrainman
Build with earth, Harvest rain, Eco-san, live good , Tread lightly on the earth..and yes Bob Dylan is still God2,250 followers | Follow
Green Home Garden
Your home should be more than just a home: a living place where nature give you what you need, using Recycling, Green energy and Natural fabrics.2,122 followers | Follow
PaulMottley
I'm really into being eco friendly but don't always follow it ! Maybe if we all do a little we can achieve alot ?2,039 followers | Follow
All Concern
Environmental Issues & Recycling Help! Keep informed, follow to keep on top of environmental issues & helping go green!1,935 followers | Follow
green with glamour
The ultimate retail resource for all things Eco-chic! Fashion, Home Furnishings & Gifts! Also,check out our lifestyle blog Living GWG (www.livinggwg.com).1,839 followers | Follow
PlanetRedo
Startup Founder, Environmentalist, Recycle, Sustainable living, Going Green, Gardening, Working Parent, with a great family.1,700 followers | Follow
World Future Council
The WFC brings the interests of future generations to the centre of policy making by providing decision-makers with effective policy solutions.1,501 followers | Follow
PeacefulJeff
Earth Steward advocating for science-based climate change global action through 350.org and others. Trainer for 99% Spring. www.the99spring1,397 followers | Follow
Climate Change
Real time updates on climate change and global warming issues and policies1,344 followers | Follow
Solar Fred
Manufacturer and distributor of custom designed solar hot water systems for commercial applications. We Tweet solar!1,252 followers | Follow
The GreenTech Shop
thegreentechshop.com sells environmentally friendly consumer electronics. $1 of every purchase is donated to the Environmental and Energy Study Institute.1,204 followers | Follow
Tom Cotter
Tom Cotter works at Real Goods Solar. He thinks solar is magic. He loves to start stuff. He is funnier than his wife realizes. Please let her know.1,105 followers | Follow
New GenerationEnergy
We help nonprofits and small businesses nationwide develop and fund green projects. Tweets by digital marketing manager Bianca Strzelczyk (pictured).1,082 followers | Follow
Save Mary Lake
Mary Lake is a beautiful habitat for endangered species. To save it from development, please help us raise $1million by Jan 31! http://SaveMaryLake.com/943 followers | Follow
Shelby Ruff
Vice President, National Sales & Sales Agent Program www.solarcommunity.com Nationwide residential solar energy sales and installation.855 followers | Follow
SumGreenIdeas
Share and discover eco-friendly products and ideas. Shop green with our partners and we'll plant trees.732 followers | Follow
Sunsational Green
Green Building and Green Living Solutions. Your source for Solargon's and SIPs697 followers | Follow
CRD EcoStar Awards
The CRD’s EcoStar Awards recognize outstanding achievements by local businesses, groups and individuals to enhancing our environment.689 followers | Follow
Yard Plots
2507391182 Nanaimo Landscaping and Yard maitenance. Winter tree service now available. YCD598 followers | Follow
eco imprints
Green promotional marketing firm providing ecofriendly products and branding/design services. A dedicated and fun agency team!587 followers | Follow
Miller Smeed
493 followers | Follow
Letsgowild.ca
Canada's first outdoor activity network. Visit our website at www.letsgowild.ca425 followers | Follow
EcoStylish Living
Ideas and conversation on living an eco-friendly life (with style!)367 followers | Follow
Vanguard Solar
Vanguard Solar Technologies offers state of the art ultra reliable and efficient solar systems, solar panels, inverters, cables, racks and much more.355 followers | Follow
Simple Solar Homes
Learn how to build a small solar home for less than $10,000!251 followers | Follow
iDUS Controls
iDUS Controls Ltd. develops algorithmic controls, water sensors and mesh-to-web communication technologies for agriculture, business and homes.189 followers | Follow
