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Global warming counteracts 1800 years of cooling

An international research team has shown that sea surface temperatures have been cooled down over a period of 1800 years, and that the cooling during the last 1000 years (from 800 to 1800) is presumably due to volcanic eruptions. The water was coldest during the Little Ice Age – i.e. before human-induced global warming cancelled out the cooling effect in the 1800s. For more information: Faculty of Science and Technology, ScienceNordicVidenskab.dk (in Danish) and Nature Geoscience (subscription required)