Nasa has released a powerful animation mapping global warming trends between 1880 and 2015.

It shows the changing temparatures over the last 100 or so years using a rolling five-year average.

The blue colours represent temperatures cooler than average, while hues of orange signify temperatures warmer than average.

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It is taken from the 1951-80 baseline average.

While the Earth appears predominantly blue in tone around the turn of the 20th century, there are noticable patches of orange that begin to appear from the mid-1930's.

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These gradually become more widespread, showing the long-term warming trend in action.

Source: The Telegraph | 2 June 2017

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