Photo: Misti Weathersby
Today, Environmental Protection Agency (EPA) Administrator Gina McCarthy announced that the agency is proposing new rules to dramatically reduce carbon dioxide emissions from existing power plants. The new rules, which the EPA is calling their “Clean Power Plan,” would reduce carbon emission from existing power plants by 30 percent from 2005 levels by 2030, an amount equal to the pollution emitted by more than 150 million cars. But what does all of this mean for the ocean? Many people may not realize it, but by proposing the Clean Power Plan, the United States took a significant step towards addressing ocean acidification. Reducing carbon pollution from power plants means there will be less carbon pollution in the atmosphere. And less carbon pollution in the atmosphere means less carbon pollution that is absorbed by the ocean, turning it more acidic.
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Photo: Ted Van Pelt with Creative Commons License
When people think about the state of Maine, images of lobsters and lighthouses usually spring to mind. For the state of Maryland, people think of blue crab and the rivers feeding into the Chesapeake Bay. Both states are closely associated with rich maritime traditions, however a change in ocean chemistry is rapidly occurring that could jeopardize not only their maritime way of life, but also the jobs and economic benefits that the ocean and coastal waters provide.
Ocean acidification is caused by carbon pollution from factories, cars, and power plants being absorbed by the ocean, turning it more acidic. In fact, the ocean absorbs roughly 30% of all carbon pollution we put into the atmosphere, and local pollution running off from the land into coastal areas can make acidification worse. Animals that have shells, like oysters, clams, mussels and crabs have trouble surviving in increasingly acidic water. In the Pacific Northwest ocean acidification has damaged these animals, contributing to billions of baby oyster deaths, significantly impacting the hatcheries and oyster operations in these regions. The impact of ocean acidification on other animals, such as lobsters and fish, are not well understood.
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