Marine ecosystems play a significant role in regulating global climate by influencing carbon and nutrient cycles. Oceans act as major carbon sinks, absorbing large amounts of carbon dioxide from the atmosphere. They regulate temperatures and support diverse species that contribute to biogeochemical cycles. Additionally, marine ecosystems, such as coral reefs and mangroves, provide crucial habitat and biodiversity, which enhance ecosystem resilience. By maintaining these systems, we support not only marine life but also global climate stability.