"For every one degree C increase in average global temperature rise, we will see a
10% decrease in crop yields. That's huge. "
Is the world warming? I don't know and there is nothing I can do if it is, but I can tell you from personal experience that crop yields are going up, and have been for the last 30 years that I've been involved in agriculture. So if your claiming a warmer earth is causing a decrease in crop yield I have to throw the BS flag on that play.