Quote Originally Posted by Xiahou
1. We don't know what role, if any, we're playing in global climate change.
Quote Originally Posted by Xiahou
2. Even if it were man-generated CO2 causing all the warming, it's impossible for us to make the needed cuts in time to stop it.
These two statements are somewhat contradictory. How can you "know" (read: completely without supporting argumentation or scientific data claim) that we can't solve the problem if we've caused it, if you simultaneously claim we don't know how much effect our actions have? If we don't know which part of our actions causes the warming as you claim, then how can you be so sure that we can't eliminate that cause?

Quote Originally Posted by Xiahou
3. We don't know how much warming there really is and if it would really be such a bad thing
Have you heard of thermometers?