Исправке

Air pollution

• Firstly, it is obvious that at the root of any environmental problem, including the lack of clean air, is the irrational usage and consumption of natural resources by mankind.

• Moreover, the modern society factors such as global industrialization, an increase in the number of transport vehicles using internal combustion engines and a steady increase of the population, accelerate this process in a geometric progression.

• Satisfying the need of a growing humanity in food and building materials, people continue to cut down forests - the main sources of oxygen, which also directly affects the quality of the inhaled air, the shortage of which is acute in megacities.

• For example, according to recent studies, air in cities with a population of more than one million inhabitants over the past 10 years has become 21% more polluted than before.