Much of the difficulty inherent in recycling comes from the fact that most products are not designed with recycling in mind. The concept of sustainable design aims to solve this problem, and was first laid out in the book “Cradle to Cradle: Remaking the Way We Make Things” by architect William McDonough and chemist Michael Braungart. They suggest that every product (and all packaging they require) should have a complete “closed-loop” cycle mapped out for each component—a way in which every component will either return to the natural ecosystem through biodegradation or be recycled indefinitely.

As with environmental economics, care must be taken to ensure a complete view of the costs and benefits involved. For example, cardboard packaging for food products is more easily recycled than plastic, but is heavier to ship and may result in more waste from spoilage.

The following are criticisms of many popular points used for recycling.

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