Scientists have known for a while about the water-purifying properties of seeds from Moringa olfeira, the so-called “miracle tree” that’s native to northwest India but can grow in many other parts of the world. But past approaches to using the […]
Toilet water? You could be drinking it
It’s hard to know whether to take this as good news or bad news: the US National Research Council (NRC) says we might soon worry less about water shortages thanks to technology advances that would let us turn municipal wastewater […]