
Biogenic calcification
Biogenic calcification is the process by which living organisms produce calcium carbonate, a key component of shells and skeletons. This occurs in various marine species, such as corals, mollusks, and some plankton. As these creatures extract calcium from seawater, they combine it with carbon dioxide to create solid structures that provide protection and support. This process plays a crucial role in forming coral reefs and contributes to the carbon cycle, as it helps sequester carbon dioxide from the atmosphere. Changes in ocean chemistry, often due to climate change, can impact the ability of these organisms to calcify effectively.