COVENTRY, ENGLAND - MARCH 19:  NASA scientist and climatologist James Hansen takes part in a mock funeral parade during a Climate Change Campaign Action Day on March 19, 2009 in Coventry, England. Christian Aid, CAFOD and others took to the streets of Coventry with a mock  New Orleans style funeral to highlight that action is needed to combat climate change. The group will later picket the headquarters of power supplier EON. Getty Images logo Getty Images 8 months ago

COVENTRY, ENGLAND - MARCH 19: NASA scientist and climatologist James Hansen takes part in a mock funeral parade during a Climate Change Campaign Action Day on March 19, 2009 in Coventry, England. Christian Aid, CAFOD and others took to the streets of Coventry with a mock New Orleans style funeral to highlight that action is needed to combat climate change. The group will later picket the headquarters of power supplier EON.