March 21, 2010
Maine Voices: Column's critique of global warming claims was on the money - Press Herald- About: global warming news
The presence of a period warmer than the present – but without the presence of man-made greenhouse gases – embarrassed those enthusiastic alarmists who hold that global warming
can only be attributed to the activities of man coordinated with corresponding increases in CO2 emissions. This uptilt came to be known as "the hockey stick" and was quite clearly featured in the next IPCC report, where it was then rhapsodically affirmed as indicating that the present warming was unprecedented in the last thousand years, was clearly caused by increasing CO2 emissions, and is likely to get worse without drastic reduction in CO2 emissions caused by human activity. As has been frequently noted elsewhere, apart from the manipulation of the database to fit a preconceived hypothesis of unprecedented recent warmth attributed to human activity, the most acute criticism was written by two Canadian statisticians and two other independent assessments of the hockey stick graph. Because the existence of the Medieval Warm Period is amply documented in historical accounts for the North Atlantic Region, Mann and his allies countered that the warming had to be regional, but was not characteristic of the whole Northern Hemisphere and especially not the planet.
can only be attributed to the activities of man coordinated with corresponding increases in CO2 emissions. This uptilt came to be known as "the hockey stick" and was quite clearly featured in the next IPCC report, where it was then rhapsodically affirmed as indicating that the present warming was unprecedented in the last thousand years, was clearly caused by increasing CO2 emissions, and is likely to get worse without drastic reduction in CO2 emissions caused by human activity. As has been frequently noted elsewhere, apart from the manipulation of the database to fit a preconceived hypothesis of unprecedented recent warmth attributed to human activity, the most acute criticism was written by two Canadian statisticians and two other independent assessments of the hockey stick graph. Because the existence of the Medieval Warm Period is amply documented in historical accounts for the North Atlantic Region, Mann and his allies countered that the warming had to be regional, but was not characteristic of the whole Northern Hemisphere and especially not the planet.
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