Biodegradable plastic in clothing doesn't break down nearly as quickly as hoped—new research

NASA: Saturn’s Rings Are Young and Could Quickly Disappear

Not so biodegradable: Bio-based plastic and plastic-blend textiles do not biodegrade in the ocean

New nontoxic powder uses sunlight to quickly disinfect contaminated drinking water. A low-cost, recyclable powder can kill thousands of waterborne bacteria per second when exposed to sunlight.