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NASA's GISS has now concluded that year 2011 was the ninth warmest year on record, globally, since the modern meteorological record was started in the 1880's. This continues a trend of the warmest years on the record accumulating in the most recent decades. I am now personally comfortable recognizing that we are well past the point of possible coincidence. You can refer to my earlier post on this. The Earth is on a definite warming trend, and it is probable, again in my opinion, that the most recent increases in weather variance are early indicators of shifting states of regional climates. Take a moment to watch NASA's excellent video.