New study suggests rise in sea levels from global warming may be worse than expected

WASHINGTON - Melting ice from global warming may raise sea levels even more than had been expected, an analysis suggests.

Long-term melting of ice in Antarctica and other areas could raise sea levels by 16 feet to 17 feet, previous studies have indicated. But a report in Friday's edition of the journal Science warns that factors not previously considered could boost that increase to up to 21 feet in some areas. Earlier research has focused on melting ice adding water to the oceans and on thermal...

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