Stand behind an air conditioner when it's running, Touch a light bulb when it's turned on. Put your hand on a motor when it's running. Now times that by 6.79 billion people. Have you ever flown over a city at night ? Just look at all the lights.Shoot... we even create heat trying to keep our food cold. Everything humans do creates heat. Population control is the only answer but when you have so many religious freaks sitting around patting each other on the back talking about how good they are when chances are that they have never helped a strainger out in their entire lives...well..... the earth will keep getting warmer. Populationj control is the only answer. CH4 and CO2 ? Ha.... I laugh in your face.

The earth will be a much healthier planet when the cockroaches take over.

Sure, we produce heat... but that's nothing compared to the amount of heat that is constantly radiating down from the sun, or up from the Earth's core. But we've never worried about that heat because it is constantly radiating back into space. What matters is the energy that is trapped by the atmosphere.

If no heat were trapped, this rock would be uninhabitable... dropping more than 100 degrees C during the night. But if too much heat is trapped... we could see some pretty drastic changes on our planet.

I want to reduce human fertility, which would gradually reduce the world population. I support policy to that extent... but I don't think you'll find too many environmentalists that would support genocide or speciocide. Reducing fertility would take a full generation before we see world population start to reduce, and then it would reduce very slowly. We can target some of the gasses which are the greatest concern much more quickly, and that's something that is far easier to rally people around.