Given that we don’t know what causes Ice Ages, this sounds as likely as other explanations. One image that remains with me is what I saw in a documentary at the McDonald’s Observatory. The earth is shown as a small rock in a fiery stream of solar radiation. It is a small blue stone that is kept from burning to a cinder (like our moon) by the magnetic field that surrounds it. Compared with the forces at work as depicted in that film, the acts of man seem trivial.
Do me a favor, willya?
1... Print that sentence in 36-pt font on 8.5x11 inch paper.
2... Staple that paper to Al Gore's forehead.
That's because they are trivial.
We humans are along for the ride on this planet. We're definitely in the back seat.
Look up “Maunder Minimum”, a dirth of sunspots that started the Little Ice Age. We have had a similar situation in the last couple of years. Lack of sunspots, which some scientists believe allow cosmic radiation (from exploding stars) to reach earth, causing cloud formation and cooling.