Increasing carbon dioxide emissions and freshwater runoff challenge the ocean's ability to neutralize acidification -- an imbalance caused by absorption of the greenhouse gas from the air.

The outcome of the conference in Doha was widely criticized, but some offered glimpses of hope.

COP18 demonstrated that we can no longer put our faith in politicians to make the tough decisions we need to avert catastrophic climate change. They have ignored the greatest challenge we face in the world today.

A collection of papers out in PNAS looks at the response to the Deepwater Horizon Oil Spill, examining whether it was successful and how it could be improved. The release of the reports comes just days after the EPA suspended BP from obtaining new U.S. contracts.

If we decide that the steel we use in our cars and bridges and buildings is going to be American steel, we will care a lot about how much pollution it generates. If we import it from Korea, we are going to focus more on the price.

DOHA, Qatar (AP) — Seeking to control global warming, nearly 200 countries agreed Saturday to extend the Kyoto Protocol, a treaty that limits the gr...

The world's media has been plumbing the depths of the thesaurus to report on the growing despondence in and around the UN climate talks in Doha, testing the limits of their vocabulary as the world's leaders test the planet's patience.

Global climate negotiations in Doha are nearing their conclusion and the talks are, as ever, beset by myriad divisions between rich nations and poor ones, between established economies and up-and-comers, and between, well, the United States and just about everyone else.

Dec 3 (Reuters) - Almost 200 nations are meeting in Doha until Dec. 7 to try to extend struggling U.N.-led efforts to slow global warming to avert e...

Last week, the World Bank issued a report suggesting that a temperature rise of more than 4 degrees Celsius (7.2 degrees Fahrenheit) by 2100 could cause widespread crop failures, malnutrition and significant sea-level rise.

The warmest July in the Mediterranean will be around 9 degrees warmer than it is today, making it as hot as parts of the Libyan desert. And, water scarcity and devastated crop yields will exacerbate global hunger, making the food riots of 2008 seem quite tame indeed.

In 1998 and for the subsequent eight years or so, I remained agnostic regarding what I viewed as the trade-offs between cap-and-trade and carbon taxes. What happened to change that? Three words: The Hamilton Project.

While Kyoto has become infamous for its modest record of squabbling at the edges of climate change, the Montreal Protocol has quietly solved five to ten times more of the climate problem than little brother.

We can no longer tolerate a situation in which the United States and China portray themselves as opponents but actually provide each other with the rationale to pursue their environmentally destabilizing trajectories.

In his acceptance speech last night Obama seemed a bit short on specifics for what his second term would mean in the area of policy. His campaign's response to Science Debate's question on climate represents a similar approach.

The negotiating teams are now tasked under the Durban Platform with identifying a new comprehensive policy architecture. The negotiators are therefore hungry for new ideas, in particular for outside-the-box thinking.

In 2009 the Japanese government signed a pledge to cut their carbon emissions by 25 percent by 2020, however following the disaster at Fukushima in 20...

* Agenda for work on new global climate deal is adopted * Agreement breaks week-long deadlock over procedure * Mistrust ...

BONN, Germany (AP) — U.N. climate talks ran into gridlock Thursday as a widening rift between rich and poor countries risked undoing some advances m...

* Kyoto extension could be flexible to enable deeper targets * Could help raise ambitions when economy better * Decision...

Whether or not the submissions by China and India are part of a diplomatic dance or represent a real step backward from their positions in Durban, the fact remains that the Durban Platform, by replacing the Berlin Mandate, has opened an important window.

Countless leaders recognize the threat of climate change and call for action to reverse it, yet continue to implement policies which do the opposite.

The Sixth Edition of Economics of the Environment: Selected Readings has just been published by W. W. Norton & Company of New York and London. Throug...