Nine out of 10 people globally are breathing poor quality air, The problem is most acute in cities, but air in rural areas is worse than many think, "It is a public health emergency," Fast action to tackle air pollution can’t come soon enough, urging governments to cut the number of vehicles on the road, improve waste management and promote clean cooking fuel.
Indoor pollution can be equally as harmful, especially in poorer developing world homes where cooking often involves burning charcoal. Nearly 90-percent of air pollution-related deaths occur in low and middle-income countries.
Staying indoors on a day when the air is particularly bad accomplishes little.
