The graph shows the daily retreat of sea ice during 2008 compared to the long-term average and the 2007 record low. Credit: Robert Simmon/Jesse Allen/Michon Scott/NSIDC

Following a record-breaking season of arctic sea ice decline in 2007, NASA scientists have kept a close watch on the 2008 melt season. Although the melt season did not break the record for ice loss, NASA data are showing that for a four-week period in August 2008, sea ice melted faster during that period than ever before. <a ...

When 10 states in the northeastern United States introduce the country's first cap-and-trade emissions market this week, their greatest service to the fight against global warming may be the mistakes they make. In the absence of guidance from the Bush administration on how to regulate greenhouse gas emissions, the states from ...

The idea of painting our roofs and roads white to offset global warming is not new, but a recent study has calculated just how significantly white surfaces could impact greenhouse gas emissions. Last week, researchers at Lawrence Berkeley National Laboratory and UC Berkeley presented their study at California's annual Climate Change ...

The world is losing momentum in the battle against global warming, the U.N. climate chief warned on Saturday, urging environmental ministers from wealthy nations to revive the effort by setting clear targets for reducing greenhouse gases. The ministers gathered in the western Japanese city of Kobe for a three-day meeting as evidence mounted ...

In Al Gore's brand-new slideshow (premiering exclusively on TED.com), he presents evidence that the pace of climate change may be even worse than scientists were recently predicting, and challenges us to act with a sense of ''generational mission'' -- the kind of feeling that brought forth the civil rights movement -- to set it right. Gore's ...

The complete documentary produced and aired by BBC Channel 4 in Great Britiain 2007. Has political hype skewed the scientific debate over this complicated, controversial topic? Hear the opposing viewpoint. Some ideas presented in this video are outdated or highly speculative/controversial in their own right. Wikipedia link spells out ...

Relax, it's worse than you think. Much worse. As this piece in the Guardian notes: The Greenland ice cap is melting so quickly that it is triggering earthquakes as pieces of ice several cubic kilometres in size break off. Yes, this is the land-based Greenland icecap, which contains enough water to raise sea levels worldwide by over 20 ...

Economist Bjorn Lomborg makes a persuasive case for prioritizing the world's biggest problems, asking ''If we had $50 billion to spend over the next four years to do good in the world, where should we spend it?'' His recommendations - based on the findings of the 2004 Copenhagen Consensus - controversially place global warming at the bottom of ...