Researchers are finding that kelp, eelgrass, and other vegetation can effectively absorb CO2 and reduce acidity in the ocean. Growing these plants in local waters, scientists say, could help mitigate the damaging impacts of acidification on marine life.Oregon’s picturesque Netarts Bay has long been known for its oysters. But Netarts, like the whole west coast of North America, is getting more acidic. And the oysters don’t like it. Since the Industrial Revolution, carbon dioxide in the air has seeped into ocean waters and boosted acidity by 30 percent. Globally, the oceans’ pH has dropped from 8.2 to 8.1, and could drop another 0.4 units by the end of the century. The problem is worse off the west coast of North America, where acidic bottom-waters are brought up to the surface by onshore winds. Corrosive waters like those suck up the building blocks for shells, and can literally eat away at the skeletons of corals.