It바카라™s daybreak in Guwahati and smoke billows into the sky as I take the wheel for my long drive back to Delhi. It is the last week of November, and a nip in the morning air is just enough to set off fog, or smog in this case. The smoke came from burning waste by the roadside. Although the city has a functional garbage collection system, households and roadside vendors burn dumps of leaf and plastic litter. And then there is road dust and ground-level ozone which adds to the deadly cocktail in the air. All this hasn바카라™t deterred the morning walkers and runners, though pulmonologists have been putting out alerts that it is not the best time to go out for such physical activity. Â