Earth | Climate, Oceans, and Coral Systems

The Earth is a unified system where climate, ocean temperature, atmospheric conditions, and biological resilience are deeply connected. Our coverage brings together reporting on coral reefs, ocean acidification, marine heatwaves, and the ecosystems that sustain billions of people and trillions of organisms.

Coral Reefs and Ocean Health

Coral reefs are the most visible indicator of ocean stress in the 2026 climate cycle. Covering less than 1 percent of the seafloor, they support roughly 25 percent of all marine species while facing unprecedented heat stress. Read our full Coral Reef guide for current bleaching data, recovery rates, and long-term resilience strategies.

Ocean Temperature and Marine Heatwaves

Sea surface temperatures in 2026 continue to exceed historical baselines, creating persistent conditions for marine heatwaves. These events stress every organism from fish larvae to adult corals, disrupting feeding, reproduction, and migration patterns. The cumulative effect is a reshaping of ocean food webs at scales that humans are only beginning to measure.

Coastal Ecosystems Under Pressure

Mangrove forests, seagrass beds, and salt marshes form the nurseries of the ocean. Fish, crustaceans, and mollusks depend on these coastal zones for the first months of their lives. When coastal habitats are degraded by pollution, aquaculture, or development, the entire downstream marine ecosystem becomes fragile.

Why Earth Systems Matter Now

Earth reporting is not separate from climate science, marine biology, or oceanography. It is the integrated study of how systems fail, adapt, and sometimes recover. A reef that survives 2026 bleaching does so because local conditions, species diversity, and recovery time all aligned. Understanding that alignment is the key to predicting which ecosystems will persist and which will collapse.