Arctic sea ice begins its annual melt with less old ice

Arctic Sea Ice News & Analysis from the USA’s National Snow and Ice Data Center reports:

Arctic sea ice extent has begun its seasonal decline towards the September minimum. Ice extent through the winter was similar to that of recent years, but lower than the 1979 to 2000 average. More importantly, the melt season has begun with a substantial amount of thin first-year ice, which is vulnerable to summer melt.

Arctic sea ice extent from: National Snow and Ice Data Center

Arctic sea ice extent

Amount of older ice has declined over the recent past: National Snow and Ice Data Center

Amount of older ice has declined over the recent past

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