[Patti_ORiley]

"That shift is hard to explain without attributing it in part to human-caused global warming, the team's members and other experts on the region said."

Year on year observations of Martian icecaps reveal the same thing -- which of course is hard to explain without attributing it in part to human-caused global warming.

[6SJ7]

Year on year observations of Martian icecaps reveal the same thing -- which of course is hard to explain without attributing it in part to human-caused global warming.

Obviously caused by those two Mars Rovers sent up last year. Four wheel drive. Driving off road. Sightseeing. Why, they're nothing more than extraterrestrial, non-indiginous, man-made SUVs! The horror!

[WideGlide]

"That shift is hard to explain without attributing it in part to human-caused global warming, the team's members and other experts on the region said."

Yes, and they have the 12th Century satellite photographs to prove it.