The big threat to coral reefs is posed by ocean acidification and warming. In the long run, it's not about sea stars, it's about the very water in which corals

The big threat to coral reefs is posed by ocean acidification and warming. In the long run, it's not about sea stars, it's about the very water in which corals live. The gradual loss in hospitality of the oceans and the associated effects on marine life are among the most serious, rarely-mentioned environmental threats currently in existence.