Increasing levels of carbon dioxide in Arctic coastal seas

ScienceDaily: Oceanography News

Significant sea-level rise in a two-degree warmer world

Posted: 24 Jun 2012 10:49 AM PDT

Even if global warming is limited to two degrees Celsius, global mean sea level could continue to rise, reaching between 1.5 and four meters above present-day levels by the year 2300, with the best estimate being at 2.7 meters, according to a new study. However, emissions reductions that allow warming to drop below 1.5 degrees Celsius could limit the rise strongly.

Some forecasters predict second-smallest Gulf of Mexico ‘dead zone’

Posted: 21 Jun 2012 12:13 PM PDT

A dry spring in portions of the Midwest is expected to result in the second-smallest Gulf of Mexico “dead zone” on record in 2012, according to a newly released forecast.

New deglaciation data opens door for earlier First Americans migration

Posted: 21 Jun 2012 11:13 AM PDT

A new study of lake sediment cores from Sanak Island in the western Gulf of Alaska suggests that deglaciation there from the last Ice Age took place as much as 1,500 to 2,000 years earlier than previously thought, opening the door for earlier coastal migration models for the Americas.

Increasing levels of carbon dioxide in Arctic coastal seas

Posted: 18 Jun 2012 12:37 PM PDT

The Arctic coastal seas absorb the greenhouse gas carbon dioxide to an ever-decreasing extent. This leads to an increase in the level in the atmosphere and an increase in the rate of warming in the Arctic.
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