In my earlier post today, I take issue with Krugman's "Global Warming Explains It" logic. However, I have another question: If Global Warming is the cause of food prices going up, then why are commodity prices rising, too?
Krugman's standard answer is that economic activity elsewhere is driving up the prices of oil and various metals. In other words, because Krugman supports the Fed's policy of throwing dollars everywhere, he is never going to admit that maybe, just maybe, throwing more and more dollars around the world might have an impact on commodity prices.
Of course, if you say that, then you are just another evil right-winger.