Figure 1 plots a 12 month running average of Global Tropospheric Temperature Anomaly (GTTA, the light grey line) and the Southern Oscillation Index (SOI, the black line). (skepticalscience.com)
To remove short - term noise, they plotted a 12 month running average of Global Tropospheric Temperature Anomaly (GTTA, the light grey line) and the Southern Oscillation Index (SOI, the black line). (skepticalscience.com)
Unless more CO2 from human sources could increase total atmospheric density it could not have a significant effect on global tropospheric temperature. (newclimatemodel.com)