Young people dressed in everyday wear, dive amongst the statues at the underwater art installation, Silent Evolution in Cancun, Mexico, on Dec. 6, 2010. TckTckTck partners, Greenpeace and 350.org, staged a haunting underwater tableau to highlight the need for urgent action as the UN Cancun climate talks went into their second week. [Xinhua]

Canadian activists hold a banner during a rally outside the United Nations Climate Change Conference in Cancun, Mexico, on Dec. 6, 2010. [Xinhua]