nowadays,The production of transport vehicles are increasing very fast in all over the world.In this case if the production value increases then the environmental problems also increases equally.we can see the air pollution due to the function of fuel based vehicles like car,bus,truck.they are producing too much of carbonated air from their engines.it would be spoiling our environment continuously.transportation is the biggest need for humans routine life.one side factories are manufacturing lots of vehicles daily on the other side humans are destroying forests which makes pure oxygenated air for living things of earth.Incase If we increase the cost of fuel for cars and other vehicles there is no use.because today peoples are earning lots of money in this running modern world.so In my point of view we need to get a alternative way of transportation vehicles.let we think about electric vehicles which is not producing air pollution.