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Skating on Thin Arctic Ice: Winter

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Skating on Thin Arctic Ice: Winter

Submarine and satellite data since 1980 show steady shrinking.

Arctic Sea Ice Thinning: Fall

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Arctic Sea Ice Thinning: Fall

Fall view: Arctic sea ice has been getting thinner, even faster than its area has been shrinking.

All the Ice on Greenland

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All the Ice on Greenland

Greenland holds enough ice to raise global sea level 23 feet or to fill the Lower 48 states 2,940 feet high, like a bathtub.

Arctic Sea Ice Thinning: Winter

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Arctic Sea Ice Thinning: Winter

Winter view: Arctic sea ice has been getting thinner, even faster than its area has been shrinking.

Greenland Annual Ice Loss 2004-07

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Greenland Annual Ice Loss 2004-07

Greenland's estimated ice loss each year from 2004 through 2007.

Greenland Total Ice Loss 2004-07

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Greenland Total Ice Loss 2004-07

Greenland has been losing large amounts of ice into the sea – enough to collect into rafts the size of states.

Greenland and San Francisco Bay

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Greenland and San Francisco Bay

Greenland has been shedding billions of tons of ice in 2007, the melted equivalent of draining San Francisco Bay every 10 days.

Alaska Total Ice Loss 2004-07

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Alaska Total Ice Loss 2004-07

Alaska has been losing tremendous volumes of ice to the sea.