Enviropig

Living on Earth

Animal manure on industrial farms can wreak environmental havoc. Manure contains phosphorous that leeches into waterways, causing algae blooms that can kill off marine life. At the University of Guelph in Ontario, microbiologist Cecil Forsberg has found a solution to the problem. He genetically modified pigs to produce low-phosphorous manure. The DNA Files producer Brian Mann reports.

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