Aredwood: Trump will have to get the Mexican border wall built first. Partly to keep the rednecks happy. And partly because he would be admitting that climate change is a problem, if he approves funding to build a different wall that is only needed due to climate change.
And it will take ages to get the Mexican border wall built, if it ever gets built.
Perhaps he should plant a nice thorny hedge instead. It might be faster, and think of all the carbon captured by a hedge that long. And if it was blackthorn, think of all the sloe gin that could be made (on both sides).
He already has that, at least in a figurative sense. A shrinking one too :-)
I was talking about an actual hedge. I like sloe gin.