Mass Movement

I'm not talking about social protest, but the long-running crisis on the planet of displaced people. While war and civil conflict are one cause, many populated areas of earth are becoming uninhabitable because of climate change -- and that in turn is an underlying cause of much of the conflict. The horrific Syrian civil war had its origin in climate change, as agricultural regions dried up and masses of people moved to cities. The war in Yemen as well is driven by water shortage. But the problem is far more widespread. This Kos diary by Pakololo is a good resource and gets you past any paywalls. 

So what is going to happen when tens of millions of people can no longer live in areas of Iran, Iraq, Syria, Lebanon? European countries have been able to absorb a lot of refugees, but the political cost to liberal government has been severe, and they won't want to take many more. But keep in mind that climate change is a major driver of migration from Central America to the U.S. border as well. Nothing the U.S. government can do will stop people from coming if the alternative is starvation.

How will societies respond to large regions, entire nations, becoming largely uninhabitable? Is anyone planning for this? Can we even foresee the outcome? This is real, and it's now, not in some comfortably distant future. And one of the two major political parties in the U.S. is essentially united in denying it. That is depravity.