An analysis of differences between daily high temps and daily low temps to measure any effects of increasing CO2 trapping heat. The analysis turns out to be another nail in the AGW coffin.
Conclusion:
The world wide surface station measured average daily rising temp and falling temp is 17.465460F/17.465673F for the period of 1950 to 2010, not only is the falling temperatures slightly larger than rising temperatures, 17.4F is only 50%-70% of a typical clear sky temperature swing of 25F to 30F, which can be as large as +40F depending on location and humidity.
This shows conclusively that the average night time cooling is not limited by GHG (green house gasses) because low humidity clear skies cool far more than the global average. Since recorded Min Max temperatures show no sign of a loss of cooling on a daily basis since at least 1950, even if CO2 has increased the amount of DLR, something else (most likely variablity of clouds) is controlling temperatures. This would seem to eliminate CO2 as the main cause of late 20th century warming.
http://wattsupwiththat.com/2013/05/...based-on-ncdc-station-record-data/#more-86438
Conclusion:
The world wide surface station measured average daily rising temp and falling temp is 17.465460F/17.465673F for the period of 1950 to 2010, not only is the falling temperatures slightly larger than rising temperatures, 17.4F is only 50%-70% of a typical clear sky temperature swing of 25F to 30F, which can be as large as +40F depending on location and humidity.
This shows conclusively that the average night time cooling is not limited by GHG (green house gasses) because low humidity clear skies cool far more than the global average. Since recorded Min Max temperatures show no sign of a loss of cooling on a daily basis since at least 1950, even if CO2 has increased the amount of DLR, something else (most likely variablity of clouds) is controlling temperatures. This would seem to eliminate CO2 as the main cause of late 20th century warming.
http://wattsupwiththat.com/2013/05/...based-on-ncdc-station-record-data/#more-86438