Washington Post: It’s odd how little we’ve heard lately from the skeptics who deny that climate change is real. What’s the matter, people? Heat stroke? The Venus-like heat that much of the country has been suffering this summer is almost enough to make anybody a believer in global warming. Almost, but not quite: Honesty compels me to acknowledge that a few weeks of record-setting temperatures do not constitute proof of anything. Climate scientists have to analyze data covering decades and centuries to …