On Sunday, actor and activist Bill Nye — known as "the science guy" — dismissed the high cost of the Green New Deal with a cheap stunt: lighting a globe on fire. "By the end of this century, if emissions keep rising, the average temperature on earth could go up another four to eight degrees," Nye declared on the HBO show Last Week Tonight with John Oliver. "What I’m saying is the planet’s on f**king fire. There are a lot of things we could do to put it out. Are any of them free? No, of course not, nothing’s free,...