James Hansen drops the mic  In final scientific paper for NASA,
pre-eminent climate scientist sounds alarm  April 15, 2013  In
response to years of what he views as dithering and ineffectual
responses by government to the problem he helped identify,
climate scientist James Hansen cited a moral obligation in
leaving his post at NASA to campaign more actively for political
and legal efforts to limit greenhouse gas emissions.  Hansen
spent more than four decades forging the scientific basis for
manmade climate change. In 1988 he was among the first to sound
off on global warming’s hazards, and earlier this month he
announced his next paper would be his last for NASA. (He told
The New York Times he would continue to publish after retirement
and had not ruled out taking an academic appointment.)  So-
called “doom-and-gloom” projections of future climate change
have been derided for their pessimism, or maybe more often for
the unpleasantness of their messengers, to the point that
addressing climate change on these t