最近这些年，珊瑚疾病，暴风雨和环境中的其他活动减少了鹿角珊瑚的数量。
In recent years, coral diseases, storms and other activity in the environment have reduced staghorn coral populations.
高居榜首的是生态系统的崩溃，如滥砍滥伐和珊瑚死亡；第二是健康与疾病，如非典和艾滋病；第三是全球性贫困。
Top of the list was ecosystem collapse, such as deforestation and the demise of corals; second were health and diseases, such as Sars and Aids; and third was global poverty.
珊瑚礁会失去颜色，比饥饿和疾病来的时候更容易死亡。
The reefs then lose their colour and become more susceptible to death from starvation or disease.
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