Not a clue.
People would be able to survive though, we have the technology. I remember reading a short story when I was a kid about people having to go out and fill buckets with frozen oxygen off the ground to replenish their air supply.
(wellgroomedwookiee is a filthy-minded hobgoblin, Wed 20 Apr 2011, 14:03, 1 reply, 15 years ago)

we'd only survive if we had
warning, though, surely
( Citizen Cavy Admires your passion for conformity, Wed 20 Apr 2011, 14:04, Reply)

I would have thought those with access to self-contained nuclear-powered bunkers would last a while,
even with minimal warning.
(wellgroomedwookiee is a filthy-minded hobgoblin, Wed 20 Apr 2011, 14:06, Reply)

Andy Mcnab would survive it.
He'd slot the bastard.
(Bear Pookie The Frankly Challenged. Halloween is coming to town., Wed 20 Apr 2011, 14:07, Reply)