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Works in Progress argues well-managed landfills beat recycling for much of our waste
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Illustration only Photo by Declan Sun on Unsplash
An essay challenges the assumption that landfilling is the worst outcome for trash, arguing that properly run landfills are clean and cheap, and that reuse and recycling often consume more energy than single-use disposal.
For engineers designing products or waste systems, the piece suggests lifecycle energy accounting should drive disposal decisions rather than reflexive recycling. The argument is that materials with low production energy, like thin plastics, may be better landfilled than replaced with durable alternatives whose manufacturing energy dwarfs any savings.
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A cotton tote bag requires roughly 173 reuses to beat a plastic bag on energy, and a steel straw needs 150 reuses to beat a plastic one, because durable materials are far more energy-intensive to produce.
Recycling is strongly justified for metals, where recycling steel saves 65 percent of energy and aluminum recycling can save up to 95 percent, but the case is weaker for materials like paper where virgin supply is abundant.
The article contends that modern landfills, properly constructed, are not the environmental hazard commonly assumed and may be the cheapest, cleanest option for low-value waste streams.
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The article's central claim is that the conventional hierarchy of waste disposal, reduce, reuse, recycle, then landfill as last resort, is backwards for many common materials. It argues that landfill, when properly engineered, is a clean and inexpensive disposal method, and that the energy and resource costs of making durable replacements for disposable goods often exceed any savings from reuse.
The piece draws on lifecycle energy comparisons from public bodies like the UK Environment Agency and Denmark's equivalent. A cotton bag uses around 1,725 megajoules to produce versus roughly 0.6 megajoules for a thin polyethylene bag, meaning the cotton version needs 173 reuses to break even. A ceramic mug needs 1,000 uses to beat a polystyrene cup on energy, and only if the dishwasher is efficient. These comparisons suggest that for lightweight, low-energy disposable items, the durable alternative rarely recovers its manufacturing cost.
Where recycling clearly pays is metals. Recycling steel saves 1.4 kilograms of iron ore per kilogram and uses 65 percent less energy; aluminum recycling can save up to 95 percent. About 30 percent of global steel production already uses recycled scrap. The article also flags batteries and electronics as sensible recycling targets because copper, cobalt, lithium, and nickel have constrained or geographically concentrated supply, and these metals recycle with little quality loss.
The argument's limit is that it is a single-source essay, not a peer-reviewed study, and it does not address externalities beyond energy and material cost, such as microplastic pollution, landfill leachate management over long horizons, or the carbon intensity of the energy sources used in manufacturing. Engineers treating this as a design input should weigh these omissions against the lifecycle numbers the article does provide.
For product and packaging engineers, the practical takeaway is that material selection should be driven by full lifecycle energy accounting rather than the assumption that reusable or recyclable is always better. The article suggests that for low-energy disposables, a well-engineered landfill may be the lower-impact choice, while recycling effort should concentrate on metals and scarce materials where the energy and supply-case is unambiguous.
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