cgvmer
Contributor
Interesting program on NOVA recently.
Analysis of the period after 9/11 showed a significant increase in the temperature. A separate data point identified an increase in the pan evaporation rates in the same period. The program discussed the possibilities that the temperature increases expected from the known additional green house gases may be somewhat compensated by the loss of sunlight reaching the earth's surface. While this may sound like a positive case for global warming to not have a large impact, with less sunlight reaching the earth's surface photosynthesis is diminished which is not good for food production by most ecosystems.
Analysis of the period after 9/11 showed a significant increase in the temperature. A separate data point identified an increase in the pan evaporation rates in the same period. The program discussed the possibilities that the temperature increases expected from the known additional green house gases may be somewhat compensated by the loss of sunlight reaching the earth's surface. While this may sound like a positive case for global warming to not have a large impact, with less sunlight reaching the earth's surface photosynthesis is diminished which is not good for food production by most ecosystems.