By setting off explosives in the shafts of the world's largest active volcanoes, and triggering large-scale eruptions.
I suppose this could be an answer to both questions; while the initial eruptions and atmospheric pollution would be fatal for just about everything, once all the dust had settled the world would be quite peaceful with no life on it.
( The Mock TurtIe ™ --- Thinks you are a cunt, on, Mon 29 Nov 2010, 22:25, 1 reply, 15 years ago)

I like this
would you want to survive and oversee civilisation.2?
( SteveFrench Cardio is for homo's. do you even lift bro?, Mon 29 Nov 2010, 22:33, Reply)

Not really, no.
What would be the point of trying to restart civilisation on a completely dead planet?
( The Mock TurtIe ™ --- Thinks you are a cunt, on, Mon 29 Nov 2010, 22:37, Reply)

It would be cool if it was like Sid Meyer's Civ 2

( djtrialprice, Mon 29 Nov 2010, 23:01, Reply)