When you skim off the politics and industry shills (even if you don't) scientific consensu is that it is likey caused by humans.

http://en.wikipedia.org/wiki/Attribution_of_recent_climate_change

Once again, my money is on the majority of experts not conservative politicians.

>No it isn't. That's half right. The expert consensus is that it exists, the debate is how much is human caused. Most climatologists will tell you that we contribute about 5% of the greenhouse gasses into the air.
>
>A normal volcano eruption will put more crap in the air than all human activities combined will in a given year.
>
>What bothers me is how this has become a political debate and not a scientific one.
>
>>>I really don't know if there is global warming.
>>
>>We're lay people. The expert consensus is that it exists and caused by humans