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High-resolution Greenland ice core records reveal two warming events at the end of the last ice age involved warming of more than 10 °C. Furthermore the warming transition beginning 14,700 years ago occurred within only three years.

A recent study presents evidence that regional warming over the Arctic Ocean can affect mid-latitude Northern Hemisphere continental weather. This study shows that there are two key Arctic regions where regional warming can induce distinguishable cold winters over northern continents. Warming over the Barents–Kara Sea region is likely to lead to East Asian cooling, whereas northern North America cooling is closely related to warming over the East Siberian–Chukchi Sea region.

In 2009 a widely used dataset indicated that the average temperature of the Earth’s surface may have stopped warming, or that it was warming at a lower rate than the long term average. A new analysis shows that the trend for 1998–2012 is indistinguishable from the best estimate of the long trend for 1951–2012.

A recent study, published in Nature, reports on how anonymized data from three quarter of a million global smart phones was used to detect and map physical inactivity around the world. The study is an outstanding example of the type of scientific analyses that is possible using human beings as sensors.