An environmental activist wearing a sign reading "Viva la Revolucion" talks to a lady during a demonstration in Copenhagen on Dec. 15 on the sidelines of the COP15 UN Climate Change Conference. Ministers at the UN's climate conference on Tuesday wrestled over key issues bedevilling an envisioned worldwide pact to roll back the threat of global warming.
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Members of Climate Rescue Team perform a resuscitation on the Earth during their demonstration in Copenhagen on Dec. 11 in the Bella Center.
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A police helicopter flies over a demonstration held by environmental activists in Copenhagen on Dec. 15.
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Actor Jet Li rides a green bicycle outside Bella Center.
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Jens Astrup/Scanpix Danmark/AFP/Newscom
Environmental activists from Climate No Borders run with a stolen balloon during a demonstration on Dec. 14.
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A protester drives his donkey - emblazoned in a green poster - to government offices in Beijing, China. He hopes to attract the attention of government ministers who are heading to Copenhagen, Denmark for the forthcoming Climate Conference.
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The Governor of California, Arnold Schwarzenegger, is seen during his speech in the Bella Centre on Dec. 15.
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A general view of the welcoming ceremony of the high level segment at the Bella center in Copenhagen on Dec. 15 is seen on the 9th day of the COP15 UN Climate Change Conference.
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Corentin Fohlen/Sipa Press/Newscom
Riots in the Christiania's quarter in Copenhagen are seen, during the Climate Summit.
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Environmental activists dressed as clowns demonstrate in Copenhagen on Dec. 15 on the sidelines of the COP15 UN Climate Change Conference.
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An environmental activist on bicycle from Climate No Borders is chased by a Danish police officer during a demonstration on Dec. 14 in Copenhagen. The UN climate summit hit major turbulence Monday when developing nations staged a five-hour walkout and China accused the West of trickery, as the spectre of failure loomed heavily over Copenhagen.
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President of Zimbabwe Robert Mugabe (c.) attends the ceremonial opening of the minister's conference at the UN World Climate Conference in Copenhagen on Dec. 15. The conference has entered its crucial phase.
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A woman gestures while being photographed by her friend in front of "Digital Sun," a light installation by artist Steven Scott at the Bella Center on Dec. 10. Environment ministers sought to boost UN climate talks after the marathon meeting ran into turbulence.
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A woman in costume sits on a horse during a Greenpeace demonstration in Parliament Square in Copenhagen on Dec. 14. The stunt was to draw attention of the incoming heads of state to the need for urgent action and agreement a legally binding deal to avert a climate catastrophe.
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A man looks at a Greenpeace poster of German chancelor Angela Merkel digitally aged by 11 years at the Copenhagen airport on Dec. 14.