Let's talk about Greenland, before everybody forgets about it. Less than a month ago, the United States was almost in a military standoff with eight European countries, two of them nuclear powers. The E.U. was threatening to cut off all trade with the United States, which would have caused a depression on both sides of the Atlantic. And NATO, the biggest alliance on the globe, might now be caput. Is President Trump just a moron, or is there a climate change explanation for why the U.S. felt it had to 'own' Greenland? This episode answers that question.