Scientists say the Greenland ice sheet is losing about 7 billion cubic feet of ice a year. Now, they are just finally beginning to uncover some reasons why its been shrinking.
UN officials say it gave fresh momentum to upcoming talks for a new climate change treaty. But many unresolved issues remain.
China is due to unveil a new proposal at the gathering Tuesday, but its plans to cut "carbon intensity" rather than limit emissions may not satisfy US lawmakers.
Obama pledged to tackle global warming in his presidential campaign. Now the world waits to see if he takes a leadership role at a climate change meeting at the UN Tuesday.
This week, negotiators from 182 countries meet in Bonn, Germany to lay the groundwork for a post-Kyoto climate regime.
The UN's top climate official defended a global trading scheme to reduce greenhouse gas emissions after the US government released a report questioning its efficacy.
Talks start Monday in Poland for a post-Kyoto climate treaty.
Experts fear the credit crunch will discourage governments worldwide from turning to taxpayers for assistance in climate-change efforts.