The long-debunked Hockey Stick graph depicts global average temperature as rapidly increasing since the 1950s along with CO2 concentration in the atmosphere. It is alarming if you are unaware of the statistical follies employed: confirmation bias (excluding contrary data) and the choice of a bogus principal components method that will generate a hockey stick even from random data. But there is another Hockey Stick that is statistically sound and far more important to human life—the correlations … [Read more...]