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Environmental Science

Environmental Impact of Food Waste Composting versus Anaerobic Digestion

Quick fact

When food waste is composted, it releases carbon dioxide (a greenhouse gas) but can store some carbon in the soil. In contrast, anaerobic digestion captures methane from the decomposing waste and uses it as a renewable energy source, effectively reducing net greenhouse gas emissions compared to composting.

Why this is interesting

You might think that composting is always the greenest way to deal with leftover food, but what if there's a method that can turn that waste into electricity?