Washington Post: Yesterday, Florida senator Marco Rubio all but announced that hell be running for president in 2016. In the process, he offered some vigorous climate denialism that should please the Republican primary electorate: Our climate is always changing, he said, noting that human activity has nothing to do with it and that any efforts to do something about it will destroy our economy. So this is a good time to recap what the other potential GOP presidential contenders has said about climate in the...