Fuelwood, vehicles behind Thimphu's air pollution
More than 42 truckloads of firewood are burnt every day in the Thimphu valley making bukharis and other heating appliances the biggest source of smoke pollution in the capital of Bhutan, according to
More than 42 truckloads of firewood are burnt every day in the Thimphu valley making bukharis and other heating appliances the biggest source of smoke pollution in the capital of Bhutan, according to