
Hansen’s doctoral thesis hypothesized that Venus was hot because of aerosols.
I decided to say that Venus was so hot because a dusty atmosphere was trapping internal heat”
He’s Not Full Of Hot Air – Newsweek and The Daily Beast
Now he says Earth is cold because of aerosols
Aerosols have a cooling effect (by reducing solar heating of the ground)
Dr. James Hansen: Doubling Down on Our Faustian Bargain
Doh – Homer. Venus is hot because of the high atmospheric pressure (92 bars.) At 1 bar in the Venusian atmosphere, temperatures are similar to earth.
[youtube=http://www.youtube.com/watch?v=vWxZm8WjlI8]