Environment
TreeHugger.com
Links, Ideas and Conversation from the TreeHugger hive mind, the latest in modern green.168,534 followers | Follow
Richard Florida
Urbanist, Author, Professor, Researcher, Talker, Bike Rider, Guitar Player144,726 followers | Follow
World Bank
The official World Bank Twitter feed. The World Bank's mission is to fight poverty with passion and professionalism for lasting results.134,841 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.118,718 followers | Follow
HuffPost Green
Latest environment & energy news, green-IY projects, animal stories & more (contact: huffpostgreen@huffingtonpost.com)96,413 followers | Follow
alexismadrigal
Senior editor, @TheAtlantic. Author of Powering the Dream. @WIRED alum. Married to @sarahrich.94,084 followers | Follow
Guardian Environment
Green news, comment & more, run by the environmentguardian.co.uk team, inc @james_randerson & @adamvaughan_uk & @dpcarrington85,773 followers | Follow
Jeffrey D. Sachs
Economist, Professor, Director of the @EarthInstitute, Columbia University and Special Advisor to UN Secretary-General. Author of The Price of Civilization.68,387 followers | Follow
NYT Green Blog
Green: A Blog About Energy and the Environment from The New York Times63,293 followers | Follow
Friends of the Earth
We see the wellbeing of people and planet as one and the same. This inspires our campaigns on climate, energy, wildlife and living within the planet’s limits.42,613 followers | Follow
FAO Media Centre
News & info from the Food & Agriculture Organization of the United Nations (FAO, aka #UNFAO), the UN agency that leads international efforts to defeat hunger.37,575 followers | Follow
Earth Institute
Mobilizing the sciences, education and public policy to achieve a sustainable earth36,545 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/unclewade35,266 followers | Follow
The Ecologist
The Ecologist - setting the environmental agenda since 1970. Like us on facebook: http://www.facebook.com/TheEcologist33,311 followers | Follow
Lisa P. Jackson, EPA
Administrator of the U.S. Environmental Protection Agency32,402 followers | Follow
Svein Tveitdal
Twitting Climate Change news and Climate Information English/Norwegian, IPCC, Director Klima 2020, former UN Director32,398 followers | Follow
World Resources Inst
Environment and human needs - climate change, global warming, ecosystems, green business, sustainable markets, good governance, sustainable development29,548 followers | Follow
The Oil Drum
A web-based/interactive energy, peak oil & sustainability research and news site; hosted by the nonprofit 501c3 Institute for the Study of Energy and Our Future28,810 followers | Follow
Climate Progress
Blog dedicated to providing the progressive perspective on climate science, climate solutions, and climate politics.27,320 followers | Follow
Rainforest Alliance
International nonprofit organization working to conserve biodiversity and ensure sustainable livelihoods25,632 followers | Follow
Yale Environment 360
Opinion, Analysis and the Latest Environmental News - A Publication of the Yale School of Forestry & Environmental Studies.23,817 followers | Follow
Digg Environment
Got a thing for nature or green tech? Get the best environment stories from Digg delivered to your Twitter stream.23,520 followers | Follow
Climate Debate
Trying to keep the climate debate honest #climategate #climatechange #agw22,695 followers | Follow
Peter Singer
Author of Animal Liberation and The Life You Can Save, professor of bioethics at Princeton University and laureate professor at the University of Melbourne.21,112 followers | Follow
CERC_Columbia
Center for Environmental Research and Conservation - Undergrad Abroad Programs; Executive Education Classes and Certification; Teacher Training; K-12 Education20,715 followers | Follow
David Roberts
Seattleite transplanted from Tennessee; now blogging for Grist about energy politics. Climate hawk, deficit dove.20,545 followers | Follow
NYTimes DotEarth
NYTimes.com/DotEarth is Andrew C. Revkin on Climate Change and Sustainable Living20,359 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.20,166 followers | Follow
Sustainable Business
Guardian Sustainable Business: aggregated news and leading-edge views for corporate sustainability professionals17,784 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.16,834 followers | Follow
The Carbon Trust
Newsfeed: The Carbon Trust (UK): working with businesses and the public sector to reduce carbon emissions and develop commercial low carbon technologies15,499 followers | Follow
Climate Desk
A journalistic collaboration dedicated to exploring the impact—human, environmental, economic, political—of a changing climate.14,882 followers | Follow
Rio+20 Conference
Official Twitter of Rio+20 UN Conference on Sustainable Development to be held 20-22 June 2012, in Rio de Janeiro. Like us on Facebook-facebook.com/UNRioPlus2014,063 followers | Follow
Peter Kobel
Writer, author, advocate for environmental, economic and social justice.12,834 followers | Follow
Marc Gunther
writer and speaker on business and sustainability, contributing editor at FORTUNE, senior writer at GreenBiz.com12,503 followers | Follow
Calestous Juma
Professor @Harvard @Kennedy_School interested in science, technology and innovation for development. To follow is a privilege; to be followed is an honor.12,463 followers | Follow
Connect4Climate
Leading communications platform dedicated to development communications. Join the conversation at http://connect4climate.org11,877 followers | Follow
CARBON NEWS
Carbon News...The Carbon Economy Experts. Our new website launching soon. www.CarbonNews.com11,651 followers | Follow
Richard Black
Environment Correspondent for BBC News: climate & conservation, forests & fisheries, whales, frogs, energy & nukes - all with a global feel11,261 followers | Follow
Am Geophysical Union
Official account of the American Geophysical Union, the world's largest organization of Earth and space scientists.10,229 followers | Follow
UN Global Compact
The world's largest voluntary corporate responsibility initiative9,931 followers | Follow
Sergio Abranches
Political analyst. Ecopolitics. Writer. CBN Radio commentator. Blogger.9,753 followers | Follow
Hewlett Foundation
Making grants to solve social and environmental problems.9,199 followers | Follow
Post Green
News about the environment, climate change and green living from @WashingtonPost. Tweets by @greglinch. Visit http://wapo.st/wpgreen & http://wapo.st/wpclimate8,936 followers | Follow
Adam Vaughan
Editor of the Guardian's environment site (@guardianeco), cyclist, runner, Londoner, Dad. Email - firstname.lastname@guardian.co.uk7,871 followers | Follow
Jeremy Rifkin
Third Industrial Revolution creator, seeking to shape US & global public policy, economist, writer, public speaker & activist.7,851 followers | Follow
Christiana Figueres
Executive Secretary of the UN Framework Convention on Climate Change (UNFCCC). Passionate about fighting climate change. Mother of two wonderful young ladies.7,778 followers | Follow
Carla Tonelli
I'm the former green business editor for Reuters.com and tweet about sustainability news -- and anything else that catches my eye.7,082 followers | Follow
WB Climate Change
A World Bank blog on Development in a Changing Climate -- Making Our Future Sustainable6,945 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.5,728 followers | Follow
GRI Secretariat
The Global Reporting Initiative's (GRI) mission is to make sustainability reporting standard practice by providing guidance and support to organizations.5,727 followers | Follow
Point Carbon
The leading news on carbon markets and climate policy from our team of reporters worldwide. Managed mainly from London by correspondent Ben Garside.5,657 followers | Follow
Geographical
The magazine of the Royal Geographical Society. Culture. Wildlife. Environment. Science. Travel. Exploration. And—of course—Geography. Tweeting: Olivia Edward.5,093 followers | Follow
chrismooney_
Science journalist, @PointofInquiry host, author of The Republican War on Science, The Republican Brain, and other light reading (http://republicanbrain.com).5,073 followers | Follow
ClimateCentral
An independent, non-profit journalism and research organization dedicated to helping mainstream Americans understand how climate change connects to them.5,030 followers | Follow
Tyndall Centre
Scientists, economists, engineers, who together are working to develop sustainable responses to climate change4,625 followers | Follow
Columbia Water Centr
Columbia Water Center, Earth Institute, Columbia University: Mobilizing the sciences, education, and public policy to reduce water scarcity around the world.4,625 followers | Follow
Ecological Society
The Ecological Society of America is a nonprofit organization founded in 1915. Check back for EcoTone blog posts, ESA updates, podcasts, and more!4,615 followers | Follow
Sheril Kirshenbaum
Director of @UTAustin's Energy Poll. Author of Unscientific America & The Science of Kissing.4,545 followers | Follow
Louise Gray
Environment Correspondent on the Daily Telegraph, Britain's most popular newspaper in the countryside, where there's more room to think - and read broadsheets.4,438 followers | Follow
James Randerson
I'm science and environment news editor at the Guardian. Into evolution, climbing and the trombone. Views here are my own. Pic credit: James Ewen/Oxfam4,294 followers | Follow
Andrew Simms
Author of Ecological Debt, Tescopoly, & some other things. Fellow of nef. Co-founded the Green New Deal & onehundredmonths.org.4,041 followers | Follow
TheClimateInstitute
A non-partisan, independent research organisation that works with community, business and government to drive innovative and effective climate change solutions3,990 followers | Follow
Peter Gleick
Co-founder Pacific Institute; climate/water scientist; member National Academy of Science, MacArthur Fellow; author of Bottled and Sold. My tweets are my own.3,962 followers | Follow
Environment Matters
The World Bank Group is the largest financier of biodiversity and works with developing countries to safeguard the environment and achieve economic growth.3,784 followers | Follow
FAO Climate Change
News and events on food security and climate change from the Food and Agriculture Organization of the United Nations (FAO)3,722 followers | Follow
Eric Pooley
SVP for strategy and communications at Environmental Defense Fund, author of The Climate War3,484 followers | Follow
Breakthrough Inst
Public policy think tank and leading advocates of public investment in clean energy technology3,410 followers | Follow
Bjorn Lomborg
Director, Copenhagen Consensus Center. Author, 'Cool It' and 'Skeptical Environmentalist'.3,364 followers | Follow
Yale Climate Project
The mission of the Yale Project on Climate Change Communication is to advance public understanding and engagement with climate change science.3,171 followers | Follow
carbon brief
Fact-checking on energy and climate from the UK, and some other stuff.3,144 followers | Follow
Livable Future Blog
Johns Hopkins Center for a Livable Future--As population and consumer demand grow there's urgent need to improve health, prevent disease and meet basic needs.3,131 followers | Follow
Michael Levi
Senior Fellow for Energy and the Environment at the Council on Foreign Relations. All views here (as elsewhere) are my own.3,009 followers | Follow
ThinkProgress Green
Part of the Think Progress family. Covering climate, energy, and environment news. Tweets by @RebLeber2,914 followers | Follow
Darren Samuelsohn
POLITICO White House & senior energy/environment reporter dsamuelsohn@politico.com2,845 followers | Follow
ENVIRONMENTAL LAW
The Environmental Law Institute (ELI) makes law work for people, places, and the planet. Founded 1969.2,790 followers | Follow
SEI Climate
Stockholm Environment Institute climate & policy research team, working at 7 centres worldwide. We post highlights of our work & interesting items we encounter.2,769 followers | Follow
Darren Goode
Energy and Environment Reporter Politico dgoode@politico.com My wife has verified this account2,752 followers | Follow
michael mccarthy
Environment Editor, The Independent, writing a lot about the natural world and the threats to it. Author of Say Goodbye To The Cuckoo. And Fulham fan.2,665 followers | Follow
FH Sustainability
Fleishman-Hillard CSR team helping biz think, operate, communicate w sustainability, triple bottom line in mind. Tweeting today: Becky Vollmer, Michelle Mulkey.2,654 followers | Follow
John P. Reisman
RealClimate is a commentary site on climate science by working climate scientists for the interested public and journalists.2,542 followers | Follow
Ecology Letters
Updates on the very latest research published in the journal Ecology Letters2,493 followers | Follow
Alex Evans
Globalisation / resource scarcity / development / resilience. Based at NYU Center on International Cooperation and Brookings. Co-editor of GlobalDashboard.org.2,379 followers | Follow
Bill Chameides
Dr. Bill Chameides, dean of Duke's Nicholas School of the Environment, blogs about science, sustainability, and the environment. (Tweeted by Erica Rowell)2,362 followers | Follow
Climate Adaptation
Be the change – create a green economy by following news about climate change adaptation, vulnerable countries, community protection, financing & opportunities.2,313 followers | Follow
UN DESA DPAD
We are the Development Policy and Analysis Division of the United Nations. http://www.facebook.com/UN.Development.Policy.DESA.DPAD?ref=mf2,188 followers | Follow
Lisa Friedman
Deputy Editor of ClimateWire, Washington's leading source of news on climate change and energy policy.2,136 followers | Follow
Richard Klein
Climate policy analyst at SEI and CSPR, co-director of NORD-STAR, editor-in-chief of Climate and Development, IPCC author.1,927 followers | Follow
Dan Berman
Money and politics editor for POLITICO. Former editor, POLITICO Pro Energy and E&E Daily. San Diego expat still waiting for a Padres or Chargers title.1,900 followers | Follow
Columbia Climate Law
Columbia Law School's Center for Climate Change Law develops legal techniques to address climate change and trains the next generation of leaders in the field.1,811 followers | Follow
BN Sustainability
News about energy, environment, and global business from Bloomberg.com's THE GRID.1,809 followers | Follow
Jonathan Foley
Global environmental scientist. Ecologist. Climatologist. Systems thinker. Director, Institute on the Environment (IonE), Univ. of Minnesota. All Tweets my own.1,809 followers | Follow
NatureClimate
Nature Climate Change is a monthly journal covering the science of climate change, its impacts and wider implications for the economy, society and policy1,790 followers | Follow
Ken Caldeira
A scientist researching issues related to climate, carbon, and energy. Need more than 140? kcaldeira@carnegie.stanford.edu1,757 followers | Follow
Yvo de Boer KPMG
New to twitter but an old hand at climate change. KPMG’s Special Global Advisor on Climate Change and Sustainability; former Executive Secretary to the UNFCCC1,688 followers | Follow
Geoff Dabelko
Environment, population, development, conflict & security. At Environmental Change & Security Program @TheWilsonCenter @NewSecurityBeat & adjunct at @MIIS1,681 followers | Follow
Daniel J. Weiss
I am Senior Fellow & Director of Climate Strategy at the Center for American Progress Action Fund.1,512 followers | Follow
David Turnbull
Former Director, CAN-International (@CANIntl). Now helping Oil Change International (@PriceofOil) take the fossil fuel industry down one subsidy at a time.1,508 followers | Follow
ClimateCLG
The Prince of Wales's Corporate Leaders Group on Climate Change (CLG) brings together business leaders from major UK, EU and international companies.1,453 followers | Follow
Tom Howard-Vyse
Former global head of media at The Climate Group. Green flack: smart cities, clean tech, clean energy, carbon capture, green business. UK-based. Views my own1,353 followers | Follow
WIREs Climate Change
WIREs Climate Change, an interdisciplinary review publication exploring current and emerging knowledge of climate change.1,271 followers | Follow
TNC Science
Nature Conservancy Science: 550 scientists helping you get smart about nature. (Curated by @rlalasz, @eatguineapigs & @DarciP.)1,211 followers | Follow
Yale Climate Media
Yale Forum on Climate Change & the Media. Coverage and analysis from correspondents nationwide. Editor Bud Ward.1,150 followers | Follow
Enviro Tribune
Environmental Tribune is a new blog dedicated to dissecting environmental news and providing environmental information.1,136 followers | Follow
EcoMarketplace
EcosystemMarketplace provides news and analysis on emerging environmental markets, including voluntary carbon market, PES, water quality trading, & biodiversity1,131 followers | Follow
MIT ClimateCoLab
Have an idea for solving the climate crisis? Join MIT's Climate CoLab to make it happen! Tweets by Rob Laubacher and @blindspotting.1,091 followers | Follow
James Greyson
Head of BlindSpot think tank. Unlocking the intermingled complexity of #globalsecurity 4 all. Fast multi-issue systemic change. @MicroChar @ClimateCoLab #csr1,049 followers | Follow
The Climate Group US
The Climate Group is a global NGO working with biz + govt to unlock a clean industrial revolution. All our US + intl feeds are now consolidated at @ClimateGroup997 followers | Follow
Yale Enviro Center
The Yale Center for Environmental Law & Policy seeks to advance fresh thinking and analytically rigorous approaches to environmental decisionmaking.983 followers | Follow
Political Climate
Bringing political thinking to bear on climate change policy962 followers | Follow
Daphne Wysham
Fellow @IPS_DC. Thinking outside the box on system change, climate change and GDP issues. Soccer mom. Indiaphile.883 followers | Follow
stephen nye
ethics, politics, foreign aid, environment, Central Asia, rugby, cycling, music, literature,etc, etc. Not always in that order.852 followers | Follow
Hunter Cutting
Curator for ClimateSignals, an on-line database of climate change impact reports crowd-sourced through social bookmarking825 followers | Follow
New Security Beat
The Woodrow Wilson Center's Environmental Change and Security Program blog on the links between the environment, health, population, development, and security.784 followers | Follow
Jeremy Shere
Author/writer/producer. Book in progress: reNEWable: A Reporter's Quest to Make Sense of the Coming Revolution in Alternative Energy. www.renewablebook.com667 followers | Follow
Matthew Nisbet
Commentary on communication, culture and public affairs from social scientist and professor.665 followers | Follow
Andrew Hoffman
Holcim (US) Professor at the University of Michigan; Ross School of Business; School of Natural Resources & Environment; Director of the Erb Institute653 followers | Follow
Andrew Light
Senior Fellow at Center for American Progress and Professor at George Mason University specializing in international climate policy.597 followers | Follow
Roger Pielke Jr.
professor, researcher, writer, blogger, sports fan, father, not necessarily in that order590 followers | Follow
Shin-pei Tsay
Director of cities and transportation in Energy & Climate at the Carnegie Endowment for International Peace - my own views here.587 followers | Follow
Will Rogers
@CNASdc Science, technology & national security policy, including natural resources, energy & climate. All views expressed here are mine. RTs ≠ endorsements.545 followers | Follow
Guy Shrubsole
I tweet about climate change, the environment and left-wing politics.542 followers | Follow
Luis Fueyo
Mtro. Luis Fueyo Mac Donald, titular de la Comisión Nacional de Áreas Naturales Protegidas.527 followers | Follow
Adam Corner
I research and write about the psychology of communicating climate change. I sometimes write about music and other stuff too. All views my own.523 followers | Follow
Prof Dieter Helm CBE
Professor of Energy Policy and Official Fellow in Economics, New College, Oxford.501 followers | Follow
Climate Finance
The joint UNDP/World Bank knowledge platform w/ info for developing countries on sources of climate financing, case studies, analytical tools & more!492 followers | Follow
Jonathan Leake
Science & Environment Editor, The Sunday Times, London (But all tweets are mine, blah blah blah).491 followers | Follow
Grantham Research
Bringing together international expertise to establish a world-leading centre for policy-relevant research and training in climate change and the environment.453 followers | Follow
Green Doctor
Prof. MKD considers the intersection of capitalism, political ecology & justice.424 followers | Follow
Max Boykoff
researching media & climate change, climate adaptation, cultural politics, political economy & environmental governance, science-policy397 followers | Follow
Climate Strategies
Climate Strategies is an international organisation that convenes networks of leading academic experts around specific climate change policy challenges.397 followers | Follow
Max Serrano Bardisa
Water policy analyst at Bloomberg New Energy Finance. You may not be interested in water issues, but water issues are interested in you. Views are my own.379 followers | Follow
J Reynolds
tracking the policy, politics, and science of geoengineering proposals350 followers | Follow
Business&Enviro@Yale
The Yale Center for Business and the Environment provides research and education to advance business solutions to global environmental problems.345 followers | Follow
The Climate Project
Fuerza global integrada por activistas climáticos dedicados a educar a la gente acerca de la urgencia y solubilidad del la crisis climática. Sucursal México335 followers | Follow
Olive Heffernan
London-based freelance writer covering climate and environment. Launch editor of Nature Climate Change.330 followers | Follow
ClimateCommunication
Dedicated to improving public understanding of climate change. Led by Director Susan Hassol & Science Director Richard Somerville. Tweeted by Denali Hussin.302 followers | Follow
UCL Environ Institut
258 followers | Follow
Robert Jacob
A Computational Climate Scientist at Argonne National Laboratory commenting on climate change and other science, media and politics.235 followers | Follow
Christine Shearer
Researcher, academic, author (Kivalina: A Climate Change Story) - society/environment/energy issues216 followers | Follow
Climate&Development
A journal focused on the intersection of climate and development policy. Published by the Stockholm Environment Institute and Taylor & Francis.208 followers | Follow
Judith Curry
175 followers | Follow
Schuyler Null
Managing editor of the Woodrow Wilson Center's Environmental Change and Security Program blog, New Security Beat (@NewSecurityBeat).165 followers | Follow
Patrick J. Michaels
Senior Fellow in Environmental Studies at the Cato Institute (@CatoInstitute)142 followers | Follow
Grantham Imperial
Driving forward climate change related research, translating this into real world impact and communicating our knowledge to help shape decision-making.92 followers | Follow
Curated by Jose Eseverri
Environmental media, climate change and all things green
