In the list of the most polluted cities of the world, Delhi in on the 4th place.to deal with this situation, The Supreme Court has given orders that up to 2010, all the public transport vehicles will have to be modified to the vehicles that run through the natural gas. If there is any tree that comes in the way of construction of any road or premises of a building, then the tree should not be cut, instead the road, the wall or the footpath is diverted to some other side.
