Bleaching occurs when the tiny plant-like coral organisms die, often because of higher temperatures, and leave behind only a white limestone reef skeleton.

细小而形似植物的珊瑚生物死亡时会褪色变白，原因通常是不断升高的温度，留下的只是一具白色的石灰岩珊瑚礁骨架。

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This reef structure is composed of and built by billions of tiny organisms, known as coralpolyps.

数十亿被称为珊瑚虫的微小生物组成及够造出这种珊瑚结构。

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And the oceans are becoming more acidic, with probable negative consequences to many coral reef and calcium-bearing organisms.

此外，海洋酸性越来越高，有可能给许多珊瑚礁和含钙有机体带来消极后果。

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