Proof Point
Arctic sea ice measured 4.8 million square kilometers in September 2017, down 39.2% from 7.9 million square kilometers in September 1980
Annual September Arctic Sea Ice
1980 – 2017 (million square kilometers)
Proof Point Findings
- Arctic Sea Ice – Sea ice making up Arctic Ocean, located in north part of globe, measured every September when it is at minimum
- Shrinking Sea Ice – Arctic sea ice continuously melting, declining to 4.8 million square kilometers in size in September 2017 from 7.9 million square kilometers same period in 1980, a loss of 39.2%
- Complete Loss Forecast – Half of analyzed models project Arctic sea ice to completely melt by September 2100, with some studies predicting event to occur as early as 2040
- Key Drivers – Include natural changes in atmospheric circulation as well as human-induced climate change
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Date Last Updated |
November 9, 2018
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