For Occams razor to apply one must apply a hypothesis to the phenomenon in question – and it is one that has been known about for a long time.
‘The Northern Hemisphere annular mode (NAM) (also known as the North Atlantic Oscillation) is shown to exert a strong influence on wintertime climate, not only over the Euro-Atlantic half of the hemisphere as documented in previous studies, but over the Pacific half as well. It affects not only the mean conditions, but also the day-to-day variability, modulating the intensity of mid-latitude storms and the frequency of occurrence of high-latitude blocking and cold air outbreaks throughout the hemisphere. The recent trend in the NAM toward its high-index polarity with stronger subpolar westerlies has tended to reduce the severity of winter weather over most middle- and high-latitude Northern Hemisphere continental regions.’ Regional Climate Impacts of the Northern Hemisphere Annular Mode
David W. J. Thompson andJohn M. Wallace
Science 6 July 2001: 293 (5527), 85-89. [DOI:10.1126/science.1058958]
The NAM is currently mildly positive – but the trend is definitely negative in a multi-decadal cool phase. With a cool Pacific phase – there are cool, cool winters and drought in America’s decadal future. Haven’t you seen the temperature charts for the US and wondered why there are 2 peaks – one in the 1930′s and one in the 1990′s? My very serious hydrological forecast. You guys should seriously get ready – you will be praying for global warming.