Fight against Delhi pollution

The Delhi government today shut schools and announced several steps, including a possible rerun of the odd-even scheme, to curb rising pollution in the national capital. The level of particulate matter — dust, pollen, soot, smoke, and liquid droplets suspended in air — has seen been alarming for the past couple of days. The rising pollution is being variously attributed to crop burning in nearby states, weak surface winds, drop in temperature and vehicular pollution. ET takes a look...