****ing fossil fuels. There was a special on PBS recently about how instead of our measured 1.5 degrees C global temp increase, it actually should be 3 degrees. The only thing keeping it from getting above 1.5, ironically, is the fact that all of the particulate matter released into the atmosphere by our burning of fossil fuels is blocking sunlight from reaching the earth's surface...by as much as 20% in the last few decades.