【CNN111109】圣城造朝圣者的污染威胁

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估计有250万伊斯兰信徒朝圣者去往麦加朝圣。在去年有100万个塑料瓶被丢弃之后，一个环境组织正帮助朝圣者们采用绿色环保行为。

Polluting pilgrims' threat to holy cities
An estimated 2.5 million pilgrims have descended on the city of Mecca for the Islamic Hajj. One group is trying to help pilgrims go green after 100 million plastic bottles were dumped last year