Ok, now we've got all those out of the way.
This traps heat from the sun, melting the polar ice caps, drowning polar bears and making places which have always been scorched deserts...into scorched deserts.
The melting ice, the release of massive amounts of CO2, the uncaring corporate pigs who spurned the Kyoto protocol (peace be upon it) all build up heat.
Which is precisely why we're all about to freeze to death. Save us, Al Gore! Stop the wheels of evil capitalist commerce in their tracks so we can get warm!