chand1986
2023-04-29 09:37:57
- #1
But that’s exactly the point: We know exactly why. Because first of all it is directly measurable itself. The energy retention caused by greenhouse gases can be measured with IR spectrometers. Since the 1970s also "from above" i.e. by satellite. Secondly there are such things as the laws of thermodynamics: If I accumulate additional energy in a system like the Earth, that cannot lead to no warming. And this additional accumulation is measured. Thirdly we know for sure that CO2 is radiatively active at certain frequencies (measured) and furthermore was introduced by humans into the atmosphere since 280 ppm (measured and logically inevitable, after all we definitely burned hydrocarbons). What does this have to do with the Roman Warm Period in Europe? Nothing. (I make "measured" bold because for some reason many believe the effect of CO2 is the result of some models. No!)Nice that you can measure that it’s getting warmer. But that still doesn’t tell you why. Recently there was a report about the fall of the Romans. In a side note it said that it was 2 degrees warmer back then.