Beacon you know the reasoning is more robust than that. =)
The atmospheric elevation heat pattern as well as the hot nights show that the cause is atmospheric green house gas vs any external factor.
As well the atmospheric isotopes in Co2 show that the vast majority of new Co2 in the atmosphere is the result of combustion as opposed to of gassing or volcanic sources.
Correlation isn't causation but this isn't merely correlation the conclusions are based on much much more than that.
The models merely predict the level and rate of effect. While this is an important thing to know when considering risk factors it doesn't change the fact that the recent global temperature increase is man made green house gas.
Just like it doesn't matter if Volcanic ash creates dangerous conditions at 7ppm or 7,000ppm. The reality is that volcanic ash does do damage to planes.
The only thing that has changed is your level of risk.
So while it is within the realm of possibility that global warming will stall out indefinably, that it will create a paradise jungle world or Aliens will land and begin singing the YMCA. so while we would all love to see this happen, these are just possibilities.
I once read that as human beings we judge someones fitness based on there ability to predict the future. There ability to use the best available information they have available and plan for the likely outcomes based upon there risk and reward. You do this in your personal life and in your professional life. We make choices based upon the best available information.
Currently the best available information says that human affects are causing the warming of our planet and we must take steps to slow or reduce this in order to avoid a wide variety of negative consequences.
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