scientists are finding ways to stop air
pollution especially in big industrial areas and densely-populated cities. they
are studying new ways of generating electricity that may be less damaging to the
environment. in the meantime, many power plants are being modernized to give off
less polluted material. also, engineers try to design and locate new power
plants to do minimum damage to the environment.
however, it may be that we
still have a long way to go before we have a "clean" world. nearly all of the
countries are trying hard to prevent and control air pollution. there indeed
seems to be no end to tasks that environmentalists will be required to do.
people will continually find new ways to control pollution.