Czuch: Well that Ice ages made us spread more about the world tends to make his thoughts a little nuts. As to random.. that's only due to lack of info over how.

Plus he ignores that we are the first race on this planet to be able to change significantly our surroundings, such as deforestation.. The dust bowl somewhat shows what can happen. That farmers here are restoring the use of natural predators regarding bugs that attack crops, which cuts down on the need of pesticides.

I agree, the carbon footprint thing is a bit crazy in certain respects, but it's also leading to a cut down in fuel usage by making cars more economical.