Researchers have shown that one food system problemthe huge quantity of feed needed to fuel the growing aquaculture industry - can be solved by tackling anothermethane pollution that escapes into the atmosphere each year. Researchers say that capturing polluting methane gas generated as a byproduct from industrial operations across the US, then turning it into a feedstock to make protein-rich fishmeal, would be cheaper than making conventional meal from ocean-caught fish. The waste methane could already supply 14% of the world's fishmeal demand and could expand to 100%, if all stranded methane is captured.

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