Following up on his 2008 promise that “This was the moment when the rise of the oceans began to slow, and our planet began to heal,†President Obama has promised to do something about droughts, which are caused — in his opinion — by the dreaded global warming.Obama gets a lot of his climate information from NASA’s Jim Hansen, an astrophysicist who heads the Goddard Institute for Space Studies. A federal employee, Hansen endorsed John Kerry for president in hotly contested Iowa ten days before the 2004 election. This year, he has been all over the media blaming the...