NASA Chief Sparks Global Warming Fury Scientists Denounce NASA's Michael Griffin For Saying Earth's Warming May Not Be A Concern WASHINGTON, May 31, 2007 NASA Administrator Micahel Griffin said it would be "arrogant" to assume the world's climate should not change in the future. (NASA) Quote "I have no doubt that global — that a trend of global warming exists. I am not sure that it is fair to say that is a problem we must wrestle with." NASA Administrator Michael Griffin (AP) The head of the U.S. space agency NASA drew criticism from scientists when he said he was...