and let's not forget the potential for a decine in the strength of the earth's magnetic field to contribute to global warming.
Its strength has dropped 10% over the last 150 years. Most of the drop is at the poles, which, not surprisingly is where the ozone holes are. I always wondered why, if carbon emissions were the cause of the ozone holes, why the holes weren't over industrial cities instead of Antarctica.
The magnetic field decline appears to be the answer. And it could also be a contributor to the doomsday scenario above.
Here's a little blurb about the
magnetic field and its recent decline.