There seems to be a lot of 'interpreted statisitics' with reference to global warming. Scientists who seem to be frequently pushing their theory for career furtherment and fame, pick and chose the stats they need to prove or disprove. In the 1970s, some scientists were claiming to have proved with the data they had that there was incontavertable evidence that we were heading for another ice age. I wonder where they are now?
One statistic which we don't hear much about is that volcanic activity pushes out more CO2 into the atmosphere than all the man made activities put together. The fact that volcanic activity has been markedly on the rise since 1980 may have something to do with temp rises.
"Lies, damn lies and statistics". (Disreli).