DPO includes all wastes and emissions from economic processing and final consumption. Accounting systems that calculate wastes and emissions existed before MFA was established, and usually these statistics provide good data for single materials or substances. What MFA can add to these existing databases is an overall accounting framework that includes all outflows to our domestic environment. Waste and emission policies can lead to a decrease of specific substances but simultaneously cause an increase of other wastes or emissions. Such trade-offs can become visible through an accounting framework provided by MFA that calculates all outflows to the natural environment.
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