I thought man-made global warming caused shifts in the air and ocean currents which actually result in cooler temperatures.
The AGW crowd is full of evil scientists who are as anti-human as any far leftist activist. Any way, check out the book "The Chilling Stars." It presents a very credible theory that GCR (Galactic Cosmic Rays)entering the Solar System are influenced by Sunspot activity. That interaction is a driving force in low level cloud formation. The low level clouds reflect sunlight, resulting in cooling. What I gathered from reading the book is that the science is far from settled.
Science is being utterly corrupted by the left. the fraudulent scientists at realClimate and other sites are relentless is their efforts to distort and destroy real science. They do this because the are at their core as anti-human as Gore and other evil humans who believe the lie of AGW. If the AGW crowd is successful, 100's of millions of humans will be killed. Their "solution" will kill many more people than Hitler, Mao, and Stalin-- and they would have no problem with that. Gore and his ilk are no less evil than Hitler, Mao, or Stalin.
I pray to God that the day will come when he and those who support AGW are hunted down with a vengeance.