Growing Pile of Human and Animal Waste Harbors Threats, Opportunities

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While chickens were the most plentiful livestock globally, cattle, with their larger body mass, produced the most fecal waste on the planet. As a result, countries with high numbers of cattle, such as those in the Americas, produced the most waste by mass. (Credit: Ibra Osa)

The global amount of recoverable fecal waste harbors risks, such as water contamination, as well as opportunities to harvest natural resources. Georgia Tech Assistant Professor Joe Brown with (left) and Graduate Research Assistant Andy Loo. (Photo: Gary Meek)