Decontamination method zaps pollutants from soil

Filtration systems are designed to capture multiple harmful substances from water or air simultaneously, but pollutants in soil can only be tackled individually or a few at a time—at least for now.

Cities under strain: India's predicted urban boom

India is projected to see an explosion in its urban population in the coming decades, but its cities already cannot cope and climate change will make living conditions harsher still.

page 28 from 40