The Montreal conference was the scene of two victories: the survival of Kyoto after 2012 and the US commitment to discuss the fight against global warming.
The United Nations Conference on Climate Change, which brought together 9.400 people wrapped up the 9 last December after 15 days of tough negotiations.
Several countries, including Canada and France, on Wednesday urged the United States to stop standing on the sidelines of international efforts to combat global warming. On Wednesday, Canadian Prime Minister Paul Martin said the greenhouse effect required a global response. No nation can isolate itself from the international community in the face of global warming, he said, welcoming a hundred environment ministers.