The acidification of oceans significantly impacts coral reefs by disrupting the process of calcification, which is essential for coral growth and maintenance. As carbon dioxide is absorbed by seawater, it forms carbonic acid, reducing pH levels. Lower pH can weaken coral skeletons, increasing susceptibility to bleaching and disease. Additionally, acidified waters can affect the availability of calcium carbonate—a critical component in coral structure. The degradation of coral reefs threatens marine biodiversity, as these ecosystems provide habitat for numerous species and support coastal protection and fisheries.