I just watched Al Goreâ€™s movie An Inconvenient Truth. The best part was this little clipâ€¦
Overall, I found the movie pretty convincing though (as with anything) I would recommend you do your own research on the subject.
For instance, here are a few things we do know:
1. The surface temperature of the earth is warming and the trend has increased significantly in the last 30 years
2. Concentration of greenhouse gases, especially CO2, have increased substantially since the beginning of the industrial revolution
3. The National Academy of Sciences indicate that the increase is due in large part to human activity.
4. The United States is the world’s largest emitter of manmade greenhouse gases (almost 20%)
I think itâ€™s important we (the U.S.) recognize the responsibility to reduce our emissions.