To allow better waste data management, we define a waste hierarchy for digital objects and provide insights into how to identify and categorize waste data.

为了更好地管理垃圾数据，我们为数字对象定义了一个垃圾层级，并且为如何确定和分类垃圾数据提供了一个见解。

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In another report, on the public acceptability of incineration, the society says: "There remain concerns, both about other impacts of incinerators on the local environment, and about their place in the national waste hierarchy" (the choice of waste disposal methods).

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