That's a terrible analogy. Blood alcohol level only rises upon consumption of alcohol. Temperature rises and falls due to tons of external (not fully understood) factors.
Not to mention BAC has a known baseline of 0. What is the known baseline for mean global surface temperature? Why is 1951-1980 a good choice for a base period?
well I was trying to be funny.. but blood alcohol does indeed have a physical model that relates consumption to levels in the blood.
And atmospheric temperature has a simple physical model that relates it to C02 levels. And I use the term "simple" deliberately because whilst the short term fluctuations of climate are indeed vey complex - on geological time we have always seen rising temperatures with rising CO2 and have a simple compelling atmospheric model to explain it.
Without arguing over the resolution of the historical scientific data or how fast global warming will happen - it seems inevitable that with the current CO2 levels it will happen.
