Our civilization is very reliant on agriculture to feed the 8 billion people on the planet.
With climate change droughts become more common and the capability of agriculture to feed all those people breaks down.
With climate change droughts become more common and the capability of agriculture to feed all those people breaks down.
You also have to account for the conflict that will arise if hundreds of millions of people will no longer be able to grow any crops where they live. They won’t just stay out and starve in silence.