Six years ago, on this day, March 28, 2017, PBSs report on the denialist Heartland Institute spamming science teachers with ludicrous “NIPPC” nonsense. Climate Change Skeptic Group Seeks to Influence 200,000 Teachers “Twenty-five thousand science teachers opened their mailboxes this month and found a package from the Heartland Institute, a libertarian think tank that rejects […]