Krugman says Donald Trump is all wrong to want to give regulatory relief to the coal industry. That industry can't ever be revived to where it was in the old days, says Krugman, and it would be silly to try, especially when all these abundant clean alternatives are available. In fact, to try would amount to putting "the whole planet's future at risk."   (Krugman also makes a side remark about Trump's blasphemy on NATO, and we also comment on that.)   Show notes for Ep. 89