The countdown begins
20-year-old commercial vehicles go off the road in Delhi
In the dark
LANKA POLLUTION
Getting tough
The Supreme Court bans the registration of three-wheelers in Delhi
Air Pollution
Cleaning China
The Chinese government introduces pollution-control measures
VEHICLE EMISSION TESTS
Heavy-duty diagnosis
Fighting for clean air
THE PHILIPPINES
Zeroing in on ozone
Diluting standards
BRAZIL
FATAL WHIFF
BAD AIR