Associated Press
British actress Emma Thompson, centre and John Sauven from Greenpeace  join an estimated 40,000 thousand people marching from the Embankment via Whitehall to the Houses of Parliament in London, Sunday, Sept. 21, 2014 as part of the People's Climate March, a worldwide mobilisation calling on world leaders to commit to urgent action on climate change and 100% clean energy. (AP Photo/Greenpeace International, John Cobb)

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