The nitpicky arguments against AGW more and more resemble those against Darwinian evolution.

The science is ‘settled’ in layman’s terms. It is not ‘settled’ in scientists terms.

Darwinian evolution is ‘settled’, in that it occurs. It is not settled in how it occurs.

This seems to me to be a pretty understandable state of affairs, but it sure throws some folks into a tizzy.