Bernie Sanders did not blame current terrorism on climate change. He is saying that climate change could be destabilizing to regions as it's impact increases.
“The reason is pretty obvious: If we are going to see an increase in drought and flood and extreme weather disturbances as a result of climate change, what that means is that peoples all over the world are going to be fighting over limited natural resources,” Sanders said on CBS’s “Face the Nation.”
“If there is not enough water, if there is not enough land to grow your crops, then you’re going to see migrants of people fighting over land that will sustain them, and that will lead to international conflict,” he added.