Study shows oyster reefs buffer acidification of Chesapeake Bay

Study shows oyster reefs buffer acidification of Chesapeake Bay

Virginia Institute of Marine Science

A new study co-authored by Prof. Roger Mann of 's Virginia Institute of Marine Science adds a new item to the list of oyster reef benefits — the ability to buffer increasing acidity of ocean waters.

Concerns about increasing acidity in Chesapeake Bay and the global ocean stem from human inputs of carbon dioxide to seawater, either through burning of fossil fuels or runoff of excess nutrients from land. The latter over-fertilizes marine plants and ultimately leads to increased respiration by plankton-filtering oysters and bacteria. In either case, adding carbon dioxide to water produces carbonic acid, a process that has increased ocean acidity by more than 30 percent since the start of the Industrial Revolution.

Wednesday, May 8, 2013
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Can Acid Neutralizers Help Coral Reefs Bounce Back?

NPR

Coral reefs are in trouble worldwide, from a host of threats, including warming ocean temperatures, nutrient runoff and increasing ocean acidity. A noted climate scientist from California has been conducting an experiment on Australia's Great Barrier Reef to see whether antacid could boost coral growth.

Thursday, April 18, 2013
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Facing Climate Change

Facing Climate Change

New Videos from the Pacific Northwest BY: BEN DRUMMOND & SARAH JOY STEELE

Kathleen Nisbet, and her father Dave farm oysters in Waxhington's Willipa Bay. They recently shifted some of their business to Hawai'i after ocean acidification started killing baby oysters in hatcheries.

Friday, February 15, 2013
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WA’s First Ocean Acidification Legislation

WA’s First Ocean Acidification Legislation

Slightline Daily

On the heels of Washington State’s pioneering efforts to identify local steps to slow ocean acidification, Sen. Kevin Ranker (D-Orcas Island) has introduced legislation to begin coordinating that response. SB 5547 would create a new council of elected and tribal representatives and affected industries to oversee research and action to curb profoundly troubling changes in ocean chemistry.

The bill would also include acidification as a possible justification for extending urban sewer services to rural areas (normally not allowed under the state’s Growth Management Act), in areas where local pollution from leaky septic systems combines with global carbon dioxide emissions to make the problem worse.

Wednesday, February 6, 2013
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Pacific Northwest paying high price for carbon emissions

The Grist

It is ironic that despite relatively progressive clean energy policies the West Coast is paying an unusually high price for global carbon emissions. Ocean water off the Pacific coast has absorbed so much carbon that it is becoming acidic enough to melt the shells of sea creatures. Our national and global addiction to fossil fuel and unwillingness to seriously reduce carbon emissions is taking its toll, right here, in real time, with profound implications for the Pacific Ocean.

Friday, February 1, 2013
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