Just when you thought the global warming argument couldn't get any more ridiculous

[PADDLES]

http://www.guardian.co.uk/science/20...-civilisations

i'm speechless, surely a scientist didn't score a grant to come up with this

[charlie09]

Hmmm I think these guys should change their occupation and start writing sci-fi novels. Scary thought that they work for NASA

[Luc]

With global warming & CO2 virtually at the religious stage, anything's possible.

It's a wonder those aliens didn't come when dinosaurs were alive as the CO2 level was substantially higher than now.

No, hang on, they probably sent down the meteorite that killed them all off!!!!

Luc

[TheRealAndy]

The great thing about this planet, is that we dont need any aliens to destroy the civilisation. Its not required, we are going to take care of that ourselves.