Sand vs soil, which will be the better filter? Soil is so important to what we eat and drink! It helps filter rainwater, chemicals, and waste into clean water. Farming also relies on healthy soil to ...

Nature sanitises around 38 million tonnes of human waste per year – the equivalent of around £3.2-billion-worth of commercial water treatment. Alison Parker at Cranfield University in the UK and ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

John (Jack) Watson, professor of Soil Physics & Biogeochemistry, is collecting soil samples at Penn State's Living Filter site. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of ...