The Sea Turtle Conservancy estimates that there are 85,000 to 90,000 nesting female green sea turtles worldwide. The population of males and immature females is not known.
Green sea turtles are an endangered species. They reproduce slowly. They must be at least 10 years old to breed, and females lay eggs only every three to four years. Hatchlings are vulnerable to predators and to light pollution near their nesting sites, which confuses them into crawling toward buildings and homes instead of the sea. Overhunting, disease, pollution, accidental drowning in nets that lack turtle exclusion devices and ingestion of plastic fishing gear and trash have also contributed to declines in green sea turtle population.