HANOI: Toxic smoke billows from a burning mound of plastic bags and leaves on Le Thi Huyen's farm in Hanoi, a city battling an alarming air pollution surge that the communist government appears in no hurry to fix.
In the last three months the Vietnamese capital has regularly topped a list of the world's most polluted major cities, leaving its nine million residents struggling to breathe and even to see through a thick blanket of smog.
