Among the most valuable ecosystems on Earth, coral reefs provide humans with billions of dollars in economic and environmental services such as food, protection for coasts, and tourism. Coral ecosystems face serious threats, mainly from the impacts from climate change, unsustainable fishing, and land-based pollution. Together, these and other threats are decimating corals faster than they can adapt for survival. This section of the site is meant to demonstrate the value of these ecosystems and provide an informational resource about coral and coral ecosystems.