Washington state confronts ocean acidification

Washington state confronts ocean acidification

BY: JULIET EILPERIN, The Washington Post

Washington Gov. Chris Gregoire (D) ordered state agencies on Tuesday to take steps to address the ocean’s increasing acidity, making it the first state to adopt a policy to take on what scientists describe as a growing environmental concern.

Ocean acidification poses a threat to the state’s $270 million shellfish industry, as well as to critical habitat off its shores.

Tuesday, November 27, 2012
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Sea snails weaken as carbon dioxide makes Antarctic waters more acidic

Reuters, The Washington Post

The shells of some marine snails are dissolving as the seas around Antarctica become more acidic, threatening the food chain, according to a study published in the journal Nature Geoscience.

Oceans soak up about a quarter of the carbon dioxide released into the atmosphere each year; as CO2 levels in the atmosphere increase from the burning of fossil fuels, so do ocean levels, making seas more acidic. This acidification threatens coral reefs, marine ecosystems and wildlife.

Monday, November 26, 2012
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First evidence of ocean acidification affecting live marine creatures in the Southern Ocean

First evidence of ocean acidification affecting live marine creatures in the Southern Ocean

British Antarctic Survey

The shells of marine snails – known as pteropods – living in the seas around Antarctica are being dissolved by ocean acidification according to a new study published this week in the journal Nature Geoscience.  These tiny animals are a valuable food source for fish and birds and play an important role in the oceanic carbon cycle*.

During a science cruise in 2008, researchers from British Antarctic Survey (BAS) and the University of East Anglia (UEA), in collaboration with colleagues from the US Woods Hole Oceanographic Institution and the National Oceanic and Atmospheric Administration (NOAA), discovered severe dissolution of the shells of living pteropods in Southern Ocean waters.

Sunday, November 25, 2012
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How do melting glaciers change ocean chemistry?

How do melting glaciers change ocean chemistry?

BY: ED SCHOENFELD, CoastAlaska News

Scientists have known for years that greenhouse gasses are altering the chemical makeup of our oceans.

More and more carbon dioxide is dissolving into salt water, creating carbonic acid. That changes the ocean’s pH, or acid-alkaline balance.

And it’s hitting harder in Alaska.

Wednesday, November 21, 2012
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Lethal carbon dioxide and ocean acidification threaten marine life

Lethal carbon dioxide and ocean acidification threaten marine life

BY: JEAN WILLIAMS, The Examiner

On Monday, Congress was called on by a leading environmental organization to address the increasing threat to sea life that has been caused by decades of warming ocean temperatures and C02 pollution.

The action by Center for Biological Diversity included submitting a detailed letter to the House of Natural Resources Committee, the Senate Committee on Commerce, Science and Transportation, and the Senate Environmental and Public Works Committee.

Tuesday, October 23, 2012
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