Here’s an interesting graph:

Image: historical-temperature.jpg

It shows that CO2 concentration increases after warming, not before. Most people are aware of this.

But it also shows something else. We are currently at the top of a spike in temperature that happens about every 100,000 years. I’m not sure what causes this - maybe some astronomical cycle. We’ve been at the top of this spike for about 10,000 years…temperatures have been relatively stable. We know this because cavemen didn’t drive hummers to run from the dinosaurs.

But the point is that soon, by entirely natural forces, whatever causes this spike is going to end. And it’s going to get colder again for a very long time. Cold as in being able to walk from Sarah Palin’s house to Russia. Cold as in glaciers in Missouri.

If humans are still around, they’ll have to adapt, unless some of those crackpot geo-engineering ideas pay off.