On Saturday, environmentally conscious people worldwide will join forces and shun private vehicles, the main culprit behind traffic congestion, during what is being billed as car-free day.
In Thailand, environmentalists in Bangkok -- and in other cities like Chiang Mai -- will take their bicycles and ride around their respective hometowns in a parade along designated routes.
Bangkok's cyclists are to join a parade, organised by the Bangkok Metropolitan Administration, which is to set off from a department store in the heart of the city.
