Dr Lou Natic, the planet will recover whether we disappear or not. Either we'll make it (temporarily) uninhabitable causing our own demise in which case it will rebound (perhaps populated by different species but it will come back) or we will finally find a balance. I hear a lot of people saying 'save the earth', a noble goal to be sure but the earth isn't the one in trouble (in the long run) we are. Even we couldn't wipe out every single life form unless we actually blew the planet into debris (nukes are scary but even igniting all of them simultaneously wouldn't achieve that). Im not saying we arent/will do very serious damage but even if only bacteria remain after what ever we do, give it a few 100 million years and the earths niches will be reclaimed. In the big picture we aren't a threat to the planet, just to ourselves (and of course the specific species unfortunate enough to share an era with us). BTW, its not the bible that scares me, its the people interpreting it who are truly frightening.