environment - окружающая среда, состояние, окружающая обстановка
The most serious environmental problems are:
1.
Polluted air
2.
extinction of rare plant and animal species
3
lack of truly clean water in the reservoirs
Текст показан частично, во фрагменте очень подробно описана проблема загрязненного воздуха (polluted air)
Today, a strange mutation of fish, oil stains, changes in the composition of the water - not surprising
because people stopped worrying about their safety on the seas