NEW YORK - SEPTEMBER 21:  United Nations Secretary-General Ban Ki-moon and Former Prime Minister Tony Blair attend the 2009 Climate Week NYC kickoff at The New York Public Library on September 21, 2009 in New York City. Getty Images logo Getty Images 2 months ago

NEW YORK - SEPTEMBER 21: United Nations Secretary-General Ban Ki-moon and Former Prime Minister Tony Blair attend the 2009 Climate Week NYC kickoff at The New York Public Library on September 21, 2009 in New York City.