A

A girl sits on her father's shoulders in front of a globe with an interactive display during an Earth Hour ceremony at the townhall square in central Copenhagen December 16, 2009. The organizers of the event were calling for the people of Copenhagen to turn off their lights for one hour. Copenhagen hosted the United Nations Climate Change Conference 2009, which ran until December 18. Credit: REUTERS/Christian Charisius

A

A Greenpeace activist dressed as one of the Four Horsemen of the Apocalypse rides along the parliament building during a brief protest in Copenhagen December 13, 2009. Credit: REUTERS/Christian Charisius

A

A portrait of Britain's Prime Minister Gordon Brown is attached to a dog during a protest in Copenhagen December 18, 2009. Credit: REUTERS/Scanpix/Casper Christoffersen

Activists

Activists from the World Wildlife Fund (WWF) present a performance where they try to resuscitate Planet Earth during an event at the UN Climate Change Conference 2009 in Copenhagen December 11, 2009. Credit: REUTERS/Bob Strong

Activists

Activists from Avaaz.org dressed as trees hold an event in the main hall of the Bella Center during the Copenhagen Climate Change Conference 2009 in Copenhagen December 15, 2009. Credit: REUTERS/Bob Strong

A

A sculpture from the art installation 'The Pulse of the Earth' is displayed outside the United Nations Climate Change Conference 2009 in Copenhagen December 17, 2009. Credit: REUTERS/Pawel Kopczynski

A

A mermaid figure holds a placard during the 'Angry Mermaid Award' ceremony at the 'Klimaforum 2009' conference in Copenhagen December 15, 2009. Credit: REUTERS/Christian Charisius