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KAWASAKI, JAPAN - DECEMBER 01: Fumes emit from factories of Keihin Industrial Area on December 1, 2009 in Kawasaki, Japan. The United Nations Climate Change Conference in Copenhagen, Denmark will take place between December 6-18 with representatives from over 160 countries discussing the objective to prevent global warming and climate changes. (Photo by Koichi Kamoshida/Getty Images)

KAWASAKI, JAPAN - DECEMBER 01:  Fumes emit from factories of Keihin Industrial Area on December 1, 2009 in Kawasaki, Japan. The United Nations Climate Change Conference in Copenhagen, Denmark will take place between December 6-18 with representatives from over 160 countries discussing the objective to prevent global warming and climate changes.  (Photo by Koichi Kamoshida/Getty Images)