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Continue to ChatNASA scientist: Arctic sea ice could disappear in 20 years https://phillynewsnow.com/news/nasa-scientist-arctic-sea-ice-could-disappear-in-20-years/
NASA scientist: Arctic sea ice could disappear in 20 years https://phillynewsnow.com/news/nasa-scientist-arctic-sea-ice-could-disappear-in-20-years/