Grist: In 2012, when Sen. Marco Rubio (R-Fla.) was asked by GQ how old the Earth is, he demurred, I`m not a scientist, man. This was not a smooth move. It made him sound like a dumb frat boy. You dont need to be a scientist to know the Earth is roughly 4.54 billion years old, any more than you need to be a scientist to know the Earth is round or it revolves around the sun. All you need to know is what scientists have determined, which Rubio, who sits on the Commerce, Science and Transportation Committee,...