At the Edge of the Carbon Cliff

The most important number in history is now the annual measure of carbon emissions. That number reveals humanity's steady billion-tonne by billion-tonne march to the edge of the carbon cliff, beyond which scientists warn lies a fateful fall to catastrophic climate change.

OP-ED: A Universal Climate Change Agreement Is Necessary and Possible

The results of the United Nations climate change conference that closed in Doha, Qatar on Dec. 8 show once again that the international negotiations are moving steadily in the right direction, but alarmingly slow.

Doha Climate Summit Ends With No New CO2 Cuts or Funding

The United Nations climate talks in Doha went a full extra 24 hours and ended without increased cuts in fossil fuel emissions and without financial commitments between 2013 and 2015.

A Hotter World Is a Hungry World

Food prices will soar and hundreds of millions will starve without urgent action to make major cuts in fossil fuel emissions. That is what is at stake here on the last day of the U.N. climate talks known as COP 18, scientists and activists say.

An Empty Table at Doha Climate Talks

United Nations climate talks are on the edge of collapse Thursday, according to a coalition of civil society and representatives from half of the world's countries.

A Storm Brews in Doha

While the Philippines copes with the aftermath of powerful super-typhoon Bopha, which killed more than 300 people this week, tempers flared at the U.N. climate summit here.

Fossil Fuel Lobby in the Driver’s Seat at Doha

A new scientific report shows that global warming can be kept well under two degrees C, but only if most of the known deposits of coal, oil and gas remain in the ground.

OP-ED: Expanding Oil Production Poses Environmental Risks

With oil prices on the rise again and geopolitical upheaval in some major oil producing regions, many countries are turning to new and often environmentally damaging sources of oil, including oil sands, deepwater offshore oil, and heavy oil.