I'm not too versed on the bible, but I do know that it contains a book concerning revelations, the end and "things to come". Also, if God gave us free will, and we have the impulse to destroy life on Earth, that makes God himself a threat to life on Earth too. The afterlife sounds boring too, so why would god be so angry that he wants to destroy the earth? I think it's not fair that Christians say that in their Heaven, we won't need to eat or have sex. God sounds like a cruel bigot in this regard.