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In a general way, climate change means that there's going to be migration from south the north.

Both in Eurasia, Africa, and in North America, the question is how quickly we're going to act to slow it down.

The conditions necessary to allow genocide, to provide one group with the psychological

permission to kill another en masse, come together all too often.

In Europe during World War II, more recently in Cambodia, in

Rwanda, in Bosnia. This week on War College we try to understand what those conditions are, and whether climate change

may be the trigger for the next Holocaust.

You're listening to War College, a weekly discussion of a world in conflict focusing on the stories behind the front lines.

Here's your host, Jason Fields.

Hello and welcome to War College. I'm Reuters Opinion Editor Jason Fields.

And I'm Matthew Galt, contributing editor at Wars Boring.

With us today is historian and author Timothy Snyder. is His newest book is Black Earth, The Holocaust as History and Warning.

Professor Snyder, Tim, thanks so much for joining us.

Very glad I can.

So, this book along with Bloodlands is very careful examination of the conditions necessary for something like the Holocaust to happen.

Can you describe what the conditions are?

We usually think about the Holocaust as if it were a story.

...