• News
• 
  NASA
• What Is the Right Number to Combat Climate Change?
  Is there a safe level of carbon dioxide in the atmosphere to prevent "dangerous anthropogenic interference" in the climate?

• Features
• 
  NASA
• How Can Humanity Avoid or Reverse the Dangers Posed by a Warming Climate?
  With greenhouse gas emissions continuing to rise, strong efforts will be required to reverse global warming

• 60-Second Earth
• 
• What Explains Past Climate Change?
  Was the climate really hotter during medieval times? David Biello reports

• Features
• 
  Senator James Inhofe
• Seven Answers to Climate Contrarian Nonsense
  Evidence for human interference with Earth's climate continues to accumulate

 

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News
Special Report: Climate Change
Examining the state of the science on climate change

Observations
Lonely senator says Copenhagen necessary for climate action in U.S.
Senator John Kerry made the trip to the U.N. climate summit to say that "success in Copenhagen is really critical to success next year in the U.S. Senate and Congress."

Observations
Draft text of new "Copenhagen Accord"
Here is the latest draft text of the "Copenhagen Accord" put forward on December 18 by the U.S., China, India and South Africa, among other countries, at the climate summit in the Danish capital

Observations
Climate change is ridding the world's tropical mountain ranges of ice
When the entire water system of your area changes as a result of climate change, how do you adapt?

Podcast
Accord of Sorts in Copenhagen
Working late into the night, negotiators from the world's nations agreed in principle to attempt to limit the global postindustrial temperature rise to 2 degrees Celsius. Steve Mirsky reports, with Christina Reed in Copenhagen

Scientific American Magazine
The Future of Climate Policy Could Be Found in Copenhagen
The U.S. can lead the world to a historic emissions agreement by committing to its own sweeping energy transformation

News
World's First Fuel Cell Ship Docks in Copenhagen
Can fuel cells and natural gas help reduce emissions from shipping?

Observations
Climate change cover-up? You better believe it
Sadly for the potential fate of human civilization, rumors of the demise of climate change have been much exaggerated

News
Carbon Dioxide Auction Launches U.S. Effort to Combat Climate Change
Six northeastern states auction off the right to emit global warming pollution

60-Second Earth
Linked Challenges: Climate Change and Energy Use
Are national governments prepared to offer more than hot air on climate change in Copenhagen this December? David Biello reports

Features
First Look at Carbon Capture and Storage in a West Virginia Coal-Fired Power Plant [Slide Show]
The world's first power facility to capture and store a portion of its carbon dioxide has begun operating in Appalachia

In-Depth Reports
The Future of Alternative Energy
Geothermal, solar thermal, and even nuclear power could provide alternatives to today's carbon-based fuel sources

In-Depth Reports
The Future of Nuclear Power
The U.S.--and the world--is gearing up to build a potentially massive fleet of new nuclear reactors, in part to fight climate change. But can nuclear power handle the load?

News Blog
Is birth control the answer to environmental ills?
The biodiversity crisis. The water crisis. The climate crisis. Lurking behind all these crises is at least one shared factor: human population

News
How Sunlight Controls Climate
New computer models begin to suggest how changes in the sun's strength might change weather patterns

News
Just How Sensitive Is Earth's Climate to Atmospheric Carbon Dioxide?
Two new studies look far back in geologic time to determine how sensitive the global climate is to atmospheric CO2 levels

News
Farmed Out: How Will Climate Change Impact World Food Supplies?
A new study attempts to estimate the effects of climate change on global agriculture--and outline ways to mitigate its most dire consequences

News
Combating Climate Change: Farming Out Global Warming Solutions
Changes to agricultural practice and forestry management could cut greenhouse gas emissions, buying time to develop alternative technologies

60-Second Earth
Carbon Offsets: Fact or Fiction?
Everyone from motorists to television producers are buying offsets to save the climate. But do they work? David Biello reports

News Blog
Is geoengineering humanity's last hope to avoid catastrophic global warming?
Consciously tweaking Earth's climate in an attempt to stave off global warming is feasible and worth studying carefully, but probably not something we want to get involved in