[marktwain]

Admitting that your assumptions about the world are wrong is one of the hardest things for any person to do.

For Hansen to admit that anthropogenic global warming is wrong would be for him to admit that he has spent his life on a series of wrong assumptions and mistakes.

It is almost impossible for an adult human to do so, absent catastrophic and life changing stress.

[cuban leaf]

—It is almost impossible for an adult human to do so, absent catastrophic and life changing stress.—

I think you have hit the crux of the issue here. The more married I am to a certain viewpoint, the harder it is to give it up. But I HAVE done it.