Thanks to a variety of clean air and water regulations, China's infamously polluted waterways are looking cleaner.
According to a report published today in Nature Geosciences, phosphorous levels in China's lakes declined by 60% between 2006 and 2014. Phosphorous is a crucial nutrient for plant growth, but it's also a common byproduct of industry and used as a fertilizer. Too much of it can trigger the growth of harmful algae that, when it dies and decomposes, can consume the ecosystem's oxygen and kill all animal life.
Why it matters: Phosphorous pollution is a large source of water quality degradation globally that threatens biodiversity and the health of humans near polluted water. In the U.S., economic losses associated with high phosphorus levels in freshwaters is about $2.2 billion each year.