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Dutch researchers convert office urine into electricity, fertilizer and hydrogen

Scientists in the Netherlands have developed a system that transforms human urine collected from office urinals into usable energy and nutrients. The setup uses bacteria to break down organic matter in urine, with electrons transferred to electrodes to generate electric current. The process also extracts phosphate and ammonia, which can serve as fertilizer inputs. Separately collected urine acts as an effective feedstock for these bio-electrochemical treatment systems. Researchers say the technology demonstrates urine's potential as a source of hydrogen gas and agricultural nutrients.

LA's 2023 Record Storms Refilled Reservoirs but Restored Only 25% of Deep Aquifers

Record-breaking storms in 2023 significantly replenished Los Angeles's surface reservoirs and shallow groundwater supplies. However, deeper aquifers located more than fifty meters underground recovered only about 25% of their lost water volume. This stark gap reveals that surface-level improvements do not necessarily reflect the condition of deeper underground water sources. Years of prolonged drought and heavy groundwater extraction are believed to be the primary causes of the slow deep aquifer recovery.