All seven sea turtle species are endangered or critically endangered. They face threats from fishing bycatch, plastic ingestion, beach development, and climate change affecting nesting beaches.
Sea turtle welfare is compromised by multiple human activities. Trawl and longline bycatch causes drowning for animals that must surface to breathe. Plastic ingestion causes intestinal blockages, buoyancy problems, and starvation. Beach lighting disrupts hatchling orientation, causing them to move inland rather than to the sea where they die from dehydration or predation. Boat strike causes traumatic injury. Nesting beach disturbance causes females to abort nesting attempts. Climate change is shifting sex ratios toward near-100% female in some populations.