Sources
Bill Gates
Sharing things I'm learning through my foundation work and other interests...6,685,353 followers | Follow
The White House
Official WH twitter account. Comments & messages received through official WH pages are subject to the PRA and may be archived. Learn more http://wh.gov/privacy2,890,492 followers | Follow
Rachel Maddow MSNBC
I see political people... (Retweets do not imply endorsement.)2,120,428 followers | Follow
Huffington Post
The Internet Newspaper - Curated by @kerstinshamberg, @lauralizhibbard, @socialmia, @deanpraetorius, @travelinganna1,839,118 followers | Follow
Derren Brown
Prince of Eternia and Defender of the Secrets of Castle Grayskull. Dislikes blue cheese.1,149,174 followers | Follow
Michael Moore
Filmmaker ('Fahrenheit 9/11'), author ('Stupid White Men'), citizen ('United States of America').1,041,044 followers | Follow
Arianna Huffington
president and editor-in-chief of the huffington post media group. mother. sister. flat shoe advocate. sleep evangelist.915,111 followers | Follow
WIRED Science
Science, space, energy and robot sharks with lasers. Hosted by the Wired Science team: @betsymason, @9brandon, @adamspacemann, @davemosher & @danielaphd.685,300 followers | Follow
Neil deGrasse Tyson
Astrophysicist, American Museum of Natural History. Author: Space Chronicle, The Pluto Files,. Host: StarTalk Radio http://StarTalkRadio.net486,608 followers | Follow
Keith Olbermann
There is Baseball, and occasionally there is other stuff of note. If you think you're following me on Facebook, I'm not ON Facebook.381,962 followers | Follow
NYTimes Science
Science, Environment, Space and Cosmos News From NYTimes.com/Science316,018 followers | Follow
Reuters Science News
From newly charted astronomical anomalies at the far reaches of the universe to the rise of nanotechnology, nobody covers science like Reuters.com.314,698 followers | Follow
Guardian Science
News, comment, all that stuff from the Guardian's science, health and environment team251,908 followers | Follow
Richard Wiseman
Personal twitter account of psychologist, author and magician Richard Wiseman.100,699 followers | Follow
HuffPost Green
Latest environment & energy news, green-IY projects, animal stories & more (contact: huffpostgreen@huffingtonpost.com)96,359 followers | Follow
350 dot org
Join a global movement that's inspiring the world to rise to the challenge of the climate crisis. 350=safe upper limit of CO2 in atmosphere. Photo by @julkosch95,084 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.87,315 followers | Follow
The Australian
News from The Australian newspaper and The Australian Online56,435 followers | Follow
Green Updates
News about green products and trends from sciencenewsblog.com.45,256 followers | Follow
Simon Singh
33,940 followers | Follow
Alan Grayson
27,193 followers | Follow
Rebecca Watson
Fearless leader of Skepchick.org, podcaster for SGU & IPN, writer, ice cream enthusiast23,679 followers | Follow
adam spencer
broadcaster, geek, dad - and recently upgraded on guitar (self-taught) from unlistenable to ponderous ... oh year, it's been a big year!23,178 followers | Follow
Climate Debate
Trying to keep the climate debate honest #climategate #climatechange #agw22,692 followers | Follow
Marc Gunther
writer and speaker on business and sustainability, contributing editor at FORTUNE, senior writer at GreenBiz.com12,501 followers | Follow
Peter Garrett AM MP
Peter Garrett is the Federal Member for Kingsford Smith and Australia's Minister for School Education, Early Childhood and Youth12,219 followers | Follow
ABC Environment
A compendium of all the environment news and issues from ABC Australia. This is an official @ABCaustralia account.12,092 followers | Follow
adamwerbach
Chief Sustainability Officer, Saatchi & Saatchi. Author of Harvard Biz book, Strategy for Sustainability. Correspondent for TheAtlantic.com10,802 followers | Follow
ABC Science
Science, health and related goodies from the Australian Broadcasting Corporation. Radio, TV and online10,307 followers | Follow
Greenpeace India
Greenpeace is an independent global campaigning organisation that acts to change attitudes and behaviour to protect and conserve the environment & promote peace8,560 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 UCS7,814 followers | Follow
Alan Boyle
Science editor at msnbc.com, Cosmic Log blogger, author of The Case for Pluto7,249 followers | Follow
SmartGridNews
News analysis for the modernization and automation of electric power6,155 followers | Follow
Green Party NZ
Green Party of Aotearoa / NZ. Say hello! Authorised by Jon Field, Level 2, 17 Garrett Street, Wellington6,129 followers | Follow
Michael Noble
Clean energy, climate and transportation leader, organizing constituencies, policy strategy & philanthropy. CEO Fresh Energy & Publisher MidwestEnergyNews.com5,283 followers | Follow
David Biello
News is what somebody somewhere wants to suppress; all the rest is advertising: Lord Northcliffe Me: Environment & Energy editor @sciam. All views my own4,836 followers | Follow
Nancy Atkinson
Senior Writer and Editor for Universe Today, Host of the NASA Lunar Science Institute podcast & a NASA/JPL Solar System Ambassador.4,598 followers | Follow
American Scientist
An authoritative source of science and technology news and features since 1913.3,642 followers | Follow
Science is Vital
No more Doctor Nice Guy! Stand up for scientific research in the UK; defend public funding. (Admin: @rpg7twit & @JennyRohn)3,418 followers | Follow
Glenn Williams
Radio & Internet broadcaster. Host of the Radio Wammo Breakfast Show on the Kiwi FM Network & The Climate Show in New Zealand2,895 followers | Follow
Queensland Greens
The Queensland Greens provide voters with a progressive, viable alternative to the old parties. Authorised by Neil Cotter 102 McDonald Rd Windsor 4030.1,889 followers | Follow
Victorian Greens
The Victorian Greens - working for better health policies, protection and sustainability of environment, and effective public transport in Victoria.1,703 followers | Follow
Philip Bump
Native English speaker. Write for folks. Used to be a designer. Used to work in politics. Used to be in high school. Gestated.1,637 followers | Follow
Mary Graham
I am proud to be open minded and liberal. I am for legalizing pot, gay marriage and a woman's right to choose!!Do not quote Bible to me!!!1,517 followers | Follow
Ken Perrott
Scientist comments on science, philosophy, religion and human rights Lives in Hamilton, New Zealand1,227 followers | Follow
Tamsin Edwards
Climate scientist with a new blog: http://allmodelsarewrong.com1,062 followers | Follow
Darren Osborne
News Editor, ABC Science Online. I read a lot of science stories. Our service posts 3 stories a day (www.abc.net/science/news), so here's a place to post more.971 followers | Follow
Noosa Greens
Convenor of Noosa Greens. Love this part of the world, want to keep it special for our kids961 followers | Follow
Scott A Mandia
Climate change info from meteo/climate prof, please help the Climate Science Legal Defense Fund @ClimSciDefense862 followers | Follow
350 Vermont
We're building a movement for bold, just climate solutions for all Vermonters -- and to inspire the world to take action.762 followers | Follow
Marrickville Greens
The Marrickville & Petersham-Newtown Greens. Comments on local politics and events733 followers | Follow
Matt Sellwood
Aspiring barrister and 2011/12 Oxford Brookes GDL student. Keep high aspirations, moderate expectations and small needs646 followers | Follow
Andrew Davies
Greenpeace web producer. But this is my personal account (views are my own only). Hoping you like my tweets.526 followers | Follow
Jamie Harkins
Business Sustainability Specialist within local gov't...do I get to call myself a hybrid? Part of The Climate Reality Project. [Tweets are my personal opinions]470 followers | Follow
Pine Island Glacier
I'm the Pine Island Glacier (PIG) and ice shelf in Antarctica. I'm melting. See also http://twitter.com/mankoff468 followers | Follow
Ballarat Greens
Social and economic justice, environmental sustainability, grassroots democracy and peace in Ballarat. Authorised: R. Purdy, 377 Little Bourke St, Melbourne421 followers | Follow
The Climate Show
A video & audio show about climate change. Hosted by Glenn Williams & Gareth Renowden348 followers | Follow
Nigel Leck
given sufficient evidence I'll accept a claim as provisionally true.It's a balance of probabilities,atheist,greenie & a bit of a nerd but mostly harmless:-)273 followers | Follow
Randwick Greens Clrs
Randwick Greens Councillors Hughes, Matson and Woodsmith187 followers | Follow
Monash Greens
Student Greens Party promoting the policies of the Greens on campus.169 followers | Follow
Irregular Climate
The Climate Podcast, for skeptics not deniers. By Dan Moutal (@scruffydan)119 followers | Follow
Sergio Tirado
PhD candidate at Central European University (Budapest) and junior researcher at 3CSEP. Env. scientist writing PhD dissertation on fuel poverty in Hungary.104 followers | Follow
James Morris
50 followers | Follow
