So let us see, the hockey stick of Michael Mann predicted that the temperature of the Earth would rise exponentially and melt the polar ice caps.
That seems to have ebbed.
And now from a real scientist, Hiroshi L. Tanaka of the University of the University of Tsukuba in Japan: â€œIt is concluded that the arctic warming before 1989 especially in winter was explained by the positive trend of the AOI. Moreover the intensified Beaufort High and the drastic decrease of the sea ice concentrations in September after 1989 were associated with the recent negative trend of the AOI [Arctic Oscillation]. Since the decadal variation of the AO is recognized as the natural variability of the global atmosphere, it is shown that both of decadal variabilities before and after 1989 in the Arctic can be mostly explained by the natural variability of the AO not by the external response due to the human activity.â€
The high-pressure sales techniques of junk scientists like Michael Mann is one tip-off that he and his crackpot theory is a scam. The other tip-off is Al Gore and company have done nothing to ameliorate their carbon footprint is another tip-off.