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Reconstructing April #Arctic sea ice extent since 1850...

You can read more about this data set at carbonbrief.org/guest-post-pie….

Line graph time series of April Arctic sea ice extent for every year from 1850 through 2023. Two datasets are compared in this time series. The Walsh et al. 2019 reconstruction is shown with a solid blue line. The NSIDC Sea Ice Index v3 is shown with a dashed red line only for the satellite era. There is large interannual variability and a long-term decreasing trend over the last few decades.

Guest post: Piecing together the Arctic’s sea ice history back to 1850 - Carbon Brief

Scientists have constructed a record of Arctic sea ice history going back to 1850 - from some rather unusual sources.
Rosamund Pearce (Carbon Brief)
#arctic
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