Reading Time: 3 minutes One hot day, young Arpit Dhupar was having a drink at one of the many sugar cane juice vendors in his home city Delhi when he noticed something: soot from the exhaust fumes emitted by the diesel engines the vendors used to power their sugar cane crushers were turning the wall behind them black. “It occurred to … Continue reading UN Environment Assembly delegates urged to get creative to solve environmental problems, including air pollution