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Washington is first state to tackle ocean acidification

November 27, 2012|By Kenneth R. Weiss | Los Angeles Times
  • Workers harvest oysters in the Puget Sound, an estuary with increasingly acidic water that threatens Washington state's shellfish industry.
Workers harvest oysters in the Puget Sound, an estuary with increasingly… (Liz O. Baylen/Los Angeles…)

Washington Gov. Chris Gregoire on Tuesday ordered state agencies to take initial steps to combat ocean acidification, making it the first state to address problematic changes in ocean chemistry that threaten shellfish farms, wild-caught fish and other marine life.

Gregoire signed the executive order based on the recommendation of a blue ribbon panel of experts that pointed out how increasingly acidified waters pose a direct threat to the state’s $270 million shellfish industry.

“A healthy ocean is critical to our health and our coastal economies,” Gregoire said in a statement. “We have learned that human caused emissions of carbon dioxide are dramatically altering the ocean’s chemistry at an alarming rate… Ocean acidification is yet another reason to quickly and significantly reduce emissions of carbon dioxide across the planet.”

Gregoire ordered state officials to work with national and international efforts to reduce carbon dioxide emissions. It’s hard to determine what impact, if any, this will have on global emissions, generated mostly by burning fossil fuels, which are the primary cause of altered ocean chemistry.

Closer to home, she proposed a new center at the University of Washington to study the issue and asked state officials to analyze how pollution streaming into coastal waters from cities and farms may be worsening the problem in the Puget Sound and Hood Canal.

Jane Lubchenco, administrator of the National Ocean and Atmospheric Administration, noted how preliminary studies indicate that these localized factors further raise acidity in near-shore waters and thus “increasing the risk to our shellfish industry, the health of oceans and the wealth of benefits they provide."

”The oceans, which are naturally alkaline, have become increasingly acidic as they absorb carbon dioxide from the atmosphere. The world’s oceans have become 30% more acidic since the Industrial Revolution by absorbing 500 billion tons of C02 released from smokestacks and tailpipes.

Although such absorption has buffered the planet from the full impact of a warming climate, it is poised to come at a cost to marine animals such as oysters, clams, snails and coral polyps. All of these marine animals rely on alkaline seawater to provide them the building materials to form their shells.

A study that linked corrosive waters to mass die-offs of oyster larvae in the Pacific Northwest hatcheries prompted Gregoire and other officials to delve into the issue, which until now has mostly preoccupied a few hundred marine and atmospheric scientists.

Gregoire, whose term ends in January, proposed $3.3 million in next year’s budget to take initial steps to carry out 42 specific actions recommended by the blue ribbon panel co-chaired by her chief of staff Jay Manning and former Environmental Protection AgencyAdministrator Bill Ruckelshaus.

ken.weiss@latimes.com

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