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Figure : declining-sea-ice-extent
Declining Sea Ice Extent
This figure appears in chapter 22 of the Climate Change Impacts in the United States: The Third National Climate Assessment report.
Average September extent of Arctic sea ice in 1980 (second year of satellite record and year of greatest September sea ice extent; outer red boundary), 1998 (about halfway through the time series; outer pink boundary) and 2012 (recent year of record and year of least September sea ice extent; outer white boundary). September is typically the month when sea ice is least extensive. Inset is the complete time series of average September sea ice extent (1979-2013). (Figure source: NSIDC 2012; Data from Fetterer et al. 20135ca69fe1-86e2-48e2-acc4-363efaf4402a).
When citing this figure, please reference NSIDC 2012; Data from Fetterer et al. 20135ca69fe1-86e2-48e2-acc4-363efaf4402a.
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