As a result of pollution, climate change, overfishing and ocean acidification, one-quarter of global reef cover has been lost in the last 50 years and one-third of reef species are endangered.

因为污染、环境变化、过度捕捞和海洋酸化，在过去的50年中全球大约四分之一的礁石已经死亡、三分之一的礁石濒临灭绝。