In recent years, the mass media have been reporting so much on environmental issues, attracting a great deal of attention from the public. In Vietnam, the most recently representative event is the mass death of fish from Ha Tinh province to Quang Tri province, causing huge damage to the government till hundreds of billion Dong, affecting the lives of inhabitants here. Not only Vietnam, some other countries in the region and in the world also suffer from severe environmental pollution. For example, in Beijing, China, the amount of air pollution is in excess of the permitted level, most of people here have to live with respiratory diseases. To overcome this current issue, the governments of many governments have the different measures to minimize the amount of pollution emitted to the environment. Many activities have been encouraged such as recycling, reusing, reforestation, waste collection, using alternative energy and so on. There have been a number of global campaigns to raise awareness of citizens like the Earth Hour with slogans, posters such as 'Protect our Earth', 'Green Environment', etc. In Vietnam, the government has also passed many laws fining heavily the organizations and individuals. Step by step, we are trying our best to protect the environment, turning the Earth into a wonderful place to live. Hope that in the future, the environmental pollution will no longer be a concern.

Nowadays, big cities are facing with air pollution, one of the most serious global issues. One of the causes is vehicular traffic. The combustion of the automobile fuel whether it is diesel or petrol, that powers a vehicle, leads to the release of poisonous gases released through the exhaust of the vehicle. Smoke generated by factories is also let out into the air leading to pollution. Moreover, the burning of fossil fuels such as coal, as also the burning of wood for cooking, and of farm wastes lead to harmful smoke polluting the air. Air pollution always has bad effects on our life. People around the world are suffering from respiratory and cardiac problems, and diseases such as cancer affecting other organs of the body too. To improve the air quality, people should plant more trees and use pubic transports instead of private vehicles.