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Workers dismantle the venue which hosted the COP 21 United Nations conference on climate change in Le Bourget, on the outskirts of Paris, on December 14, 2015. A 195 nations approved a historic accord in the French capital at the weekend to try to address global warming, offering hope that humanity can avert catastrophic climate change and usher in an energy revolution. AFP PHOTO / ADRIEN MORLENT / AFP / ADRIEN MORLENT (Photo credit should read ADRIEN MORLENT/AFP/Getty Images)

Workers dismantle the venue which hosted the COP 21 United Nations conference on climate change in Le Bourget, on the outskirts of Paris, on December 14, 2015. A 195 nations approved a historic accord in the French capital at the weekend to try to address global warming, offering hope that humanity can avert catastrophic climate change and usher in an energy revolution. AFP PHOTO / ADRIEN MORLENT / AFP / ADRIEN MORLENT        (Photo credit should read ADRIEN MORLENT/AFP/Getty Images)