Research presented at a major European science meeting adds to other evidence that cleaner air is letting more solar energy through to the Earth's surface. More CO2 means more greenhouse gasses, which means more global warming. Less CO2 means less greenhouse gasses which means more global warming. At least they are covering all the bases. Same as cold winters and warm winters being the effects of global warming. They are making it so complicated that people will just give up and let the UN take over.
All of this news and the 10-year doomsday predictions are key to getting a panic going so that we will beg the UN to take over. If we don't hurry up and give in, it will be too late, because the ice age will be pretty well advanced in 10 years.