To the Horror of Global Warming Alarmists, Global Cooling Is Here

[Benton D Struckcheon]

67. Some actual stats drawn from actual data

1. Correlation between annual change in temperature and annual change in CO2, since 1959 (the first year Mauna Loa was in operation measuring CO2 in the atmosphere):

Correlation coefficient: .929
r2: .863

2. Average temperature change from 1959 to 1990 and then from 1991 to the present, when the Montreal Protocol banning CFCs in refrigeration was passed. This is important because CFCs were powerful greenhouse gases:

1959 to 1990: .034%
1991 to 2012: .024%

This is consistent with CFCs no longer accumulating in the atmosphere, and slowly breaking down since 1990.
There's also been a very slight increase in the correlation between temperatures and CO2 since 1990, as you would expect since CFCs are a declining factor since that year.

Sources:

1. Annual Greenhouse Gas Index: http://www.esrl.noaa.gov/gmd/aggi/
2. Mauna Loa Annual Data: ftp://ftp.cmdl.noaa.gov/ccg/co2/trends/co2_annmean_mlo.txt
3. Global temperature anomalies: http://data.giss.nasa.gov/gistemp/tabledata_v3/GLB.Ts+dSST.txt