Why is Hanoi's air pollution worse than Ho Chi Minh City'sdespite fewer vehicles?
The air pollution in Hanoi follows a predictableseasonal patternlike it's returning on schedule each year.
The alarming indifference as Hanoi ranked world's 5th most polluted city
Many people still burn trashride old motorbikesand use charcoal stovesand they treat Hanoi's air pollution as someone else's problem.
HCMC metro's real profit is better quality of life
Ho Chi Minh City has reported big losses from its only metro linebut what really matters is the metro has improved the city's quality of life.
