Какие шаги предпринимаются (или будут предприняты) для борьбы с экологическими проблемами? What steps are taken to fight ecological problems?

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Every year world industry pollutes the atmosphere with about 1000 million tons of dust and other harmful substances. Many cities suffer from smog. Vast forests are cut and burn in fire. Their disappearance upsets the oxygen balance. As a result some rare species of animals, birds, fish and plants disappear forever, a number of rivers and lakes dry up.