Like their Flat Earth Society buddies, letters from climate change deniers will no longer be published by the Los Angeles Times.  Paul Thorton, the Times’ Letters Editor writes, “Simply put, I do my best to keep errors of fact off the letters page; when one does run, a correction is published. Saying “there’s no sign humans have caused climate change” is not stating an opinion, it’s asserting a factual inaccuracy”.  This follows the decision by Popular Science to turn off its facility for online comments to stem the tide of shrill, ad hominem attacks unsupported by research, authority, or evidence.  Bravo to both.