Quote Originally Posted by Elkvis View Post
The part I'm skeptical about is whether it's caused by humans, and whether it's actually a problem.
It is a problem. For us. Maybe not the planet, but for us humans living on it.

Quote Originally Posted by MutantJohn View Post
If you don't believe humans can have large impacts on the Earth, go drink the water near a factory's dump drains.
No one claimed humans don't have a big impact on nature.

Humans can have huge impacts and it doesn't surprise me that between all the deforestation and carbon dioxide emission, the Earth is getting hotter.
There is still no proof that we are the cause of the rising temperature, if the temperature is indeed rising. We don't even know for sure that it's the carbon dioxide that's causing it.