coral bleaching

Mass coral bleaching events have become more frequent as sea surface temperatures continue to rise.随着海面温度持续上升，大规模珊瑚白化事件变得更加频繁。

Coral bleaching occurs when stressed corals expel the symbiotic algae that provide them with nutrients.当受压的珊瑚排出为其提供营养的共生藻类时，就会发生珊瑚白化。