Monday 22 July 2019

World’s permafrost ‘getting warmer’

The study found the biggest rise in Siberia, where frozen soil temperatures rose by 0.9C between 2007 and 2016.

Russian scientists extract air samples from frozen soil near the town of Chersky in Siberia (Arthur Max/AP)
Russian scientists extract air samples from frozen soil near the town of Chersky in Siberia (Arthur Max/AP)

By Associated Press Reporter

The world’s permafrost is getting warmer, with temperatures increasing by an average of 0.3C (0.54F) over a decade, according to scientists.

The study found the biggest rise in Siberia, where frozen soil temperatures rose by 0.9C (1.62F) between 2007 and 2016.

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A family walking in the city of Nadym in northern Siberia (Dmitry Lovetsky/AP)

Researchers working on the Global Terrestrial Network for Permafrost collected usable data for the entire period from 123 boreholes in the Arctic, Antarctic and high mountain ranges of Europe and Central Asia.

The temperature rose at 71 sites, sank at 12 and remained unchanged at 40.

Scientists say the increases track global warming generally.

They said thawing permafrost – already recorded at five of the sites – contains organic matter that can release greenhouse gases, further stoking climate change.

PA Media

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