urinalPee is a remarkable resource. Full of nutrients that are vital for plant growth, and often home to chemically active microorganisms, urine has a range of relatively untapped powers, Jenny Morber writes for Leaps.org. Morber highlights work by scientists and engineers around the world who are working to divert and save urine for agricultural fertilizers and use it in fuel cells to power lights in communities without other sources of power. Photo: Public domain