Click on "Is human activity changing the earth's climate?"
Click on "Case for significant anthropogenic climate change is clear."
See that red box? The one that says "Zero empirical evidence of anthropogenic cause"? If you click on that, they say that there really is no empirical evidence of man causing global warming. But it doesn't matter, we need to do something about it anyway.
Christ, I thought my ex-wife pulled her arguments out of her arse ...