Vietnam cities increasingly choked by traffic and pollution

Guardian: "Although two-thirds of Vietnam’s population live in rural areas, its two major cities, Hanoi and Ho Chi Minh City, are increasingly choked by traffic and pollution. By some estimates, Hanoi is the most polluted city in south-east Asia, with concentrations of carcinogenic particles often measuring twice the recognised safe levels. The pollution is made worse by a huge annual increase in numbers of cars and motorcycles, while public transport remains inadequate."