Thousands of activists massed outside the conference centre in Copenhagen in a protest against the lack of progress on a global deal to stop climate change.

The world's leaders will be arriving in the Danish capital over the next few days for the final round of negotiations.Forty eight leaders met overnight in an informal session with the conference president.

From the moment one's airplane descends from the thick fog above Copenhagen, there is no doubt that this city has been given over to the United Nations climate summit.

http://www.usatoday.com/weather/climate/globalwarming/2009-12-07-copenha...

Coinciding with the beginning of the UN conference on climate change in Copenhagen, a US body has opened a new door to legislation that may reduce greenhouse gas emissions.

Three leading CRU scientists who on Tuesday released a report documenting the accelerating pace of climate change