introduction
(Purpose, definition... )

According to the Oxford Dictionary pollution is...

Kinds of pollution: water, land, acid rain, atmosphere (CO2, SO2...), radioactive (nuclear power stations), global warming (greenhouse effect), ozone layer...

Reasons of pollution: progress? industrial development? Can society prevent the environment destruction? Alternative energies (solar power, wind-power, water-power). Recycling...

Do you think is it possible a clean future? Or pollution is the price (side effects) we have to pay for a high standar of living? What should people do to avoid destroying the environment? What do you do to avoid pollution in your daily life?