
Many types of zooplankton feed on particles of organic matter called marine snow
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Efforts to increase the ocean’s carbon storage capacity by making seawater more alkaline could wreak havoc on the ocean’s food web, researchers warn.
Ocean alkalinity enhancement is a proposed method of removing excess carbon dioxide from the atmosphere. Alkaline substances such as basalt and calcium oxide are added to seawater to raise the pH. This helps convert dissolved CO2 in seawater to carbonates and bicarbonates, unlocking the ocean’s ability to draw further…