Good for the Environment
I have just read an article about the "green" exhibition which was held from 27th to 31st of October in AsiaWorld-Expo. The company sold their environmental products and services. Through the activity, the environmental awareness can be raised among Hong Kong people. The fair was divided into four sections – air quality, eco- friendly products, energy efficiency and waste and recycling. I think the air quality is the major problem in Hong Kong. The exhaust fumes released from the vehicles and the smoke produced from power stations pollute the air quality. The city’s Air Pollution Index remains high and the situation becomes more serious as more and more people wear masks on the streets. This also speed up the global warming. To improve air quality, we can take public transport but not private cars. I also agree with the writer’s view that harmful gas emission can be reduced by retrofitting equipment to become more energy efficient, and reducing overall electricity consumption and using clean fuel. Moreover, we can develop more renewable energy sources such as wind energy, solar energy and geothermal energy. In our classroom, the air ducts accumulate plenty of bacteria. It is considerable that all the classrooms should install air-duct cleaners. When the ducts are cleaned, the bacteria count and respirable suspended particles will be lower and the air-conditioning will improve too.