Thousands of people tuned in to watch the CNN/YouTube climate change debate, which took place Tuesday at the COP15 climate conference in Copenhagen, Denmark.
CNN and YouTube host a debate from the U.N. summit on climate change. (Part 1)
Thousands march in Copenhagen to demand leaders take action against climate change. CNN's Phil Black reports.
The rift over a leaked draft climate agreement widened Wednesday with an astonishing attack on the West by one of the poor nations' leading climate negotiators.
CNN's Phil Black reports from U.N. climate talks in Copenhagen on the reaction to a leaked draft document.
Danish Prime Minister Lars Lokke Rasmussen starts the UN Conference on Climate Change.
CNN's Emily Chang reports on a company that's using agricultural waste to produce energy.
The drumbeat rousing world leaders to action on climate change is fading out as delegates get down to the business of negotiating a global deal at climate talks in Copenhagen.
The United Nations' top climate official has urged countries to come to a clear and unified agreement at next month's climate conference in Copenhagen.
A new international treaty to combat climate change will not be ready when 40 world leaders meet next month in Copenhagen but may be finished next year, a top United Nations official said Friday in Barcelona.