Global warming has moved from a scientific debate to a religion.
The scientific method ensures that nothing is every 100% proven.
That is whole point of theories.
For example if everyone believed that newton was right about gravity, we would not have computers, or nuclear technology.
This happen with Aristotle and stunted science for 2000 years.
Science requires vigorous testing of all theories.
Air pollution is a real problem, but oceans rising by 7 meters or some other garbage like that won't happen.
There are many things that would mitigate global warming including the increase in plankton and water vapour in the atmosphere.
Even the IPCC doesn't support most of the outlandish claims made on this site.
Dangerous air from smog and poisoned water from manufacturing and power production should be our first concern and that is where most of money should go first.
For all you skeptics or people interested in some of the quirks in climate modeling you should check out Climate Audit by Steve McIntyre.
http://www.climateaudit.org/He was the guy that discovered the error in the US modeling that had 1998 as the warmest year on record, when in fact it was 1934.
Another interesting fact of the debate is that Canada and many other nations don't have national climate records before the mid 50's. So claims that world climate is the hottest on record should be tempered by the fact that we have no empirical data for the rest of the world for temperatures in the 30's.