Since our childhood we were told how bad pollution is and how deleterious its effects are for health. But when it comes to practice, we are not really bothered about even the smoke emitting buses and vans for children's schools. People send their children in such buses to schools just to save themselves the arduous duty of taking them in their own conveyance. But these smoke emitting buses and vans pose a serious threat to the health and lives of children. They use cheap fuel to minimize costs and pass on a huge financial burden to our future by giving acute respiratory diseases like cancer and asthma to little lungs. Educational institutions need to ensure that the school buses for children are well-maintained and smoke-free. Parents should also check that the bus or van they hire for their children should not be a smoking chimney on the road. -SHAMILA KHAN, Lahore, July 3.