Revelation describes a time when four horsemen will roam the Earth, destroying mankind. Whether these guys are metaphors is doubtful - one, by general consensus, is the Antichrist: who Christians believe exists. According to the bible, an apocalypse is inevitable; 'weather change' actually appears to be one of the symptoms, along with: 'wars' and 'economic disaster'. Not that this prediction wouldn't fit in with any period of time.
In America many Christians think environmentalists are doing wrong - as the planet has no future and God wants it to die. This, along with most militant religion, makes God out to be largely impotent; 'intelligent' apes are required to exert his wrath.
Maybe, if ever, humans establish themselves on another planet, Christianity will finally dissolve. Darwin may have thought similarly.