The Center for Biological Diversity filed a lawsuit against the EPA calling on it to do something about the acidifying waters of the Northwest.
The ocean absorbs millions of tons of greenhouse gases every day, and those gases are lowering the ocean’s pH and causing problems for shellfish and other creatures.
Under the Clean Water Act a water body can be declared “impaired” if it is too acidic.
Then it falls on the EPA to regulate the source of the pollution that’s causing the problem. In this case – CO2 emissions.