This image published in August 2009 in Cuban newspaper Granma shows Cuban leader Fidel Castro. The veteran Cuban leader on Friday dismissed US President Barack Obama's trip to UN climate change talks in Copenhagen as a "show," and complained that the world's poor will shoulder the burden of any summit agreement. (AFP/GRANMA/File/Alex Castro)
A portrait of Britain's Prime Gordon Brown is attached to a dog during a protest in Copenhagen December 18, 2009. Copenhagen is the host city of the U.N. Climate Change Conference 2009. REUTERS/Scanpix/Casper Christoffersen (DENMARK - Tags: POLITICS CIVIL UNREST ENVIRONMENT)