Due to the increase in carbon dioxide in the atmosphere, the ocean’s acidity has been increasing. A group of researchers recently compared the oyster population to the acidity levels and concluded that the shell of the oysters help reduce the acidity. The oyster shells are made of calcium carbonate and act as “an antacid pill” says George Waldbusser an assistant professor of earth, ocean and atmospheric sciences at Oregon State. The oysters help generate biodeposits which helps generate carbon dioxide to break down the shells. These biodeposits help regenerate the alkalinity back into the environment. Because of the Industrial Revolution, ocean acidity has increased almost 30%. Researchers believe these oysters to be extremely beneficial in lowering the acidity levels of the oceans.