You would think that someone writing about science would use mean or median 20th century temperature.
Ummm, "mean" and "average" are the same thing. :-)
But, otherwise I agree with you -- I just posted something similar.
But on another note I suppose he would want to totally ignore 18th century which quite cold.
Using the 18th century data (assuming we could get accurate data) would lower both the mean and the median. But, if you were to go all the way back to when Greenland was green (and the climate was much warmer), that might raise them.
Equating Mean and Average is a gross over simplification Mean .
Using the 18th century data (assuming we could get accurate data) would lower both the mean and the median. But, if you were to go all the way back to when Greenland was green (and the climate was much warmer), that might raise them.
The same would be true of the Twentieth Century. Accurate data for global temperatures do not exist before the 1980s and the advent of infrared satellites.
Those simple and easy to understand facts are why the whole global warming hoax is laughable. There simply is not enough data to support the hypothesis.