The science above is all speculation by PHD's to keep them out of the soup kitchens. There is no fact to back up man made climate change theories. The air is cleaner than it was fifty years ago and we still have climate changes in cycles. We have had periods of tropical weather and we have had the ice age. None of that was caused by man.
If you liberals want to concentrate on hocus pocus then go for it. Just don't force the rest of the folks that live with common sense to live your fantasy about how you are going to change the weather, by being vegetarians and by eliminating fossil fuels. If you want fact, go to the military website that has stats from their equipment in the poles that show that the ice has been melting from below and that the water is getting warmer based on underwater volcanoes and earth quakes. Those are scientists also, in case you want to disparage it because of them being part of the armed forces.