AlphaGalileo via the Institute of Physics: Researchers have added further clarity to the global climate trend, proving that global warming is showing no signs of slowing down and that further increases are to be expected in the next few decades.They revealed the true global warming trend by bringing together and analysing the five leading global temperature data sets, covering the period from 1979 to 2010, and factoring out three of the main factors that account for short-term fluctuations in global temperature: El Niño, volcanic eruptions and variations in the Sun’s brightness.
After removing these known short-term fluctuations, the researchers, statisticians and climate experts from Tempo Analytics and the Potsdam Institute for Climate Impact Research, showed that the global temperature has increased by 0.5°C in the past 30 years.. In all of the five global data sets, 2009 and 2010 were the two hottest years. In the average over all five data sets, 2010 is the hottest year on record.
Their study, published today, 6 December, in IOP Publishing’s journal Environmental Research Letters, comes at a time when global warming is at the forefront of the political agenda, with the United Nations Framework Convention on Climate Change (UNFCCC) currently taking place in Durban.
...“Our approach shows that the idea that the global warming trend has slowed or even paused over the last decade or so is a groundless misconception. It shows that differences between the five data sets reside, to a large extent, in their short-term variability and not in the climatic trend. After the variability is removed, all five data sets are very similar,” said study co-author Stefan Rahmstorf....
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