Some individuals believe that the most invaluable method to lessen (-> of lessening)the air pollution is taking place international days without cars, while others hold the view that there are numerous approaches to tackle the problem. From my point of view, people could take into account a wide range of measures rather than car-free days worldwide.
On the one hand, it is believed that one of the most effective solutions to alleviate air deterioration is the car-free days. This is mainly because cars, which account for a significant consumption level aroung (-> around) the world, is the chief culprit for noxious gas emission, especially carbon dioxide. As a result, the exhaust fumes would expand the carbon footprint and lead to serious environmental pollution such as greenhouse effect and ozone layer depletion. Therefore, it stands to reason that the reduction in cars in road haulage system would greatly contribute to the fresh atmosphere.
On the other hand, I believe that there are a host (-> hosts) of alternative methods to reduce air pollution. Firstly, planting trees could possibly be a practical way thanks to its process of absorbing carbon dioxide and emitting oxygen. These days, many countries, for example Germany, Filand, has lauched (-> launched) a series of environmental campaigns to prompt their citizens to fill the living space with the color of green. This measure has relieved the amount of fine dust, which is the consequence of air pollution, in atmosphere of almost big cities. Additionally, using renewable energies (energies là sự nỗ lực, còn với nghĩa là năng lượng thì phải dùng energy) like solar, wind, water power as the main supply for daily living activities is thought to be an approachable solution mainly because it could replace the fossil fuels consumption in manufactoring (-> manufacturing) industry.
In conclusion, I firmly believe that a combination of different method (-> various methods) is the most feasible way to ameliorate the air pollution.( nên là cải thiện chất lượng không khí thay vì dùng air pollution)
Nhận xét: Bạn còn mắc lỗi chính tả, lỗi diễn đạt và ngữ pháp . Có sử dụng mệnh đề quan hệ và nhiều linking words. Mình gợi ý bạn cần thêm đa dạng các kiểu câu để nâng band điểm lên cao hơn