On Jan 2, 11:52 pm, Igor Samoylenko <[email protected]> wrote: > Hansen mentioned the Venus syndrome in his Bjerknes Lecture he gave at AGU in > December 2008: > > http://www.columbia.edu/~jeh1/2008/AGUBjerknes_20081217.pdf
Thanks for that link :-) > > What he said is this: > Now the danger that we face is the Venus syndrome. There is no escape from > the Venus Syndrome. Venus will never have oceans again. Hansen seems to believe that Venus had oceans, but that is now seeming unlikely. It is now thought that Earth's oceans were formed from impacts from Main Asteroid Belt Comets. http://www.solstation.com/stars/asteroid.htm These are icy outer asteroids which had there orbits distorted by Jupiter. As their orbits became more elliptical, they collided with Earth, which protected Venus and kept it dry. The runaway state of Venus's atmosphere must be due to CO2, not H2O! Cheers, Alastair. -- You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. Global Change is a public, moderated venue for discussion of science, technology, economics and policy dimensions of global environmental change. Posts will be admitted to the list if and only if any moderator finds the submission to be constructive and/or interesting, on topic, and not gratuitously rude. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/globalchange
