We are used to a comfortable life, but many articles and gadgets cause pollution and destroy our health. In the city, the children can’t play in the parks because they are dirty. In some countries, people are not allowed to drink the running water, because it is polluted by sewage, chemicals, and oil-spill. The air is full of toxic air pollutants, such as dust, smoke, exhaust fumes of vehicles, carbon monoxide, etc.
However, technically, we could filter these dangerous poison gases, we continue polluting our Earth.