Ocean acidification significantly impacts marine organisms, particularly those reliant on calcium carbonate for their shells and skeletons, such as corals, mollusks, and certain plankton species. As the acidity of ocean waters increases due to the absorption of carbon dioxide, these organisms struggle to maintain their structural integrity, leading to decreased growth rates and higher mortality. This decline affects the broader marine food web, disrupting predator-prey relationships and ultimately threatening overall marine biodiversity as well as the livelihoods of those dependent on fishing.