Environmentalists protest in tents at the Trafalgar Square in downtown London, Britain, December 12, 2009. A group of environmentalists set up tents called Climate Camp, which served as a base advocating action dealing with global climate change on December 5, 2009. The protest in the tents will last until December 18, the closing of the United Nations Climate Change Conference going on in Copenhagen. [Xinhua]

Visitors visit the Climate Camp set up by environmentalists at the Trafalgar Square in downtown London, Britain, December 12, 2009. [Xinhua]