Re: Carbon dioxide
That's an interesting article. I haven't followed Hoffman's carbon dioxide posts, wish I had.
I wonder what carbon dioxide brings to the party? Is there any other instance where there are rivers of it? Do they think that the lower temperature of Mars is enough to counteract the lower gravity and atmospheric pressure? What would be the source of it?
It doesn't seem on the surface, no pun intended, to make as much sense as water, but that may be my chauvinism.
Arf ("p's" "meowf" was cute! Wish I'da thought of it.)