[BostonianRightist]

if the asteroid had not fragmented into tiny pieces when it hit the Earth's atmosphere, it would have had an impact similar to the bombing of Hiroshima.

I'm willing to bet an a-bomb-esque asteroid hitting Antarctica will melt the polar cap long before some Lysol and plastic bags do.

[Recovering Hermit]

I'm willing to bet an a-bomb-esque asteroid hitting Antarctica will melt the polar cap...

The only answer is to place a ban on all asteroids immediately.