An artwork entitled 'Earth Crisis' by US artist Shepard Fairey is displayed on the Eiffel Tower illuminated in the colors of the french flag 'Blue-White-Red', as part of the organisation of the Conference on Climate Change COP21 on November 24 in Paris, France. The climate change conference COP21 will gather 193 countries in Paris from November 30 to December 11, 2015.photo Christian Liewig (Photo by liewig christian/Corbis via Getty Images)
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