Is Climate Change a Threat to Peace?

i wonder if climate change is at risk of derailing this long peace between great powers. The short answer is yes, but you have to measure how big the risk is - that's always the real task. While there are already impacts, wildfires and so on, the big impacts are already visibly in the sub tropics where 70 % of the human population lives. And there the ho two degrees of warming is piled on top of already much higher temperatures. You are getting into situations where the temperatures can exceed the tolerance range of the major crop sould grow by a sufficient margin to troy them. But famines are usually dealt with by importing food from somewhere else,. If you're looking at