The relationship between climate change and ocean acidification is profound, as increasing atmospheric carbon dioxide levels lead to higher CO2 absorption by oceans. This process lowers the pH of seawater, resulting in ocean acidification, which adversely affects marine life, particularly organisms with calcareous structures like coral reefs and mollusks. Ocean acidification can disrupt ecosystems, impact food chains, and threaten biodiversity. Understanding this relationship is crucial for developing strategies to mitigate the effects of climate change on marine environments, emphasizing the need for reduced carbon emissions and sustainable practices.