Oh Krugman, you are so predictably boring.  You are an economist and you know nothing about climate change, certainly you have proposed no viable pathway to fix the problem.  Regarding trade, if Trump imposes tariffs, the cost of goods will go up, and folks will have to do with a little less.  But the long term consequence will be that manufacturing of goods will return home and decades down the road we will not be at the mercy of foreign manufacturers.  Reigniting manufacturing in the USA will long term save the country from disastrous dependence on others.