We're now building a clock at the Anchorage Museum that reflects the total flow of several major Alaskan rivers, which are sensitive to local and global environmental changes.
我们现在正在安克雷奇博物馆建造一个时钟，它反映了阿拉斯加几条主要河流的总流量，这些河流对当地和全球的环境变化都很敏感。
Human activities, resulted in land use and land cover changes, are main causes of global environmental changes.
由人类活动引起的土地利用和地被覆盖的变化是地球上环境变化的主要原因。
As an important component of global water circulation, groundwater is a receptor and information carrier of global environmental changes.
作为全球水循环的重要环节，地下水是全球环境变化的受体和信息载体。
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