Preventing avoidable food waste better strategy than turning it into biogas



In fact, encouraging people to work harder to cut food waste instead of collecting food waste and turning it into biogas cuts energy impacts more than biogas production and use, the researchers found.  Of equal importance, cutting food waste also helps cut the use of phosphorus, which is an increasingly scare but essential plant nutrient that is a key component of fertilizer. This matters because fully one-third of all food produced globally ends up as waste.  "Our work shows that policy and incentives should prioritize food waste prevention and that most savings can be had through a combination of prevention and recycling," said Helen Hamilton, a PhD candidate at the university's Industrial Ecology Programme.



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