Did you give me a blue sky composition because of the smog?

Give me back my blue sky.

Ancient poets wrote about the sky, "there is no dust in the sky"; The sky written by modern writers is "the blue sky is spotless and crystal clear".

Unfortunately, it is rare to see such a beautiful "day" now. Especially in cities or industrial areas, it is really uncomfortable to be shrouded in smog all day. In the face of all this, you may be tempted to sigh: "Fresh, refreshing and clear breath, where have you been?" Hurry up and cure the "disease" of the atmosphere, and give me a blue sky and a red sun!

We really have a lot of things to do, and the most important thing is to try to reduce the discharge of pollutants.

Smoke and dust are mainly produced by the endless combustion of coal and oil. By improving the combustion mode, the fuel can be fully burned, and the smoke can be greatly reduced.

Try not to burn loose coal, develop coal gasification and liquefaction, and reuse the fuel containing a lot of ash and sulfur after washing. The pollutants produced should be recycled by absorption, catalysis, adsorption and condensation, so as to turn harm into benefit and reuse.

Even pollutants entering the atmosphere, we should try our best to reduce their harm. We should strengthen the greening of the city, plant more flowers and trees, and open up more parks and avenues.

From the point of view of preventing global warming, to control the growth of greenhouse gases, especially carbon dioxide, we should try our best to use natural gas as fuel. If we can cancel the small chimneys of one household, provide central heating or implement power supply and heating cogeneration, we can save fuel and reduce carbon dioxide emissions.

If the secondary utilization of aluminum in the world is doubled on the existing basis, the pollutants discharged into the atmosphere can be reduced by 6,543,800 tons per year.

There are more than 400 million cars in the world, ranking around 18 every year. 300 million tons of carbon dioxide In order to reduce the greenhouse gas emissions of automobiles, besides limiting the number of automobiles, saving fuel consumption and installing purification devices, we should also try cleaner fuels such as methanol and ethanol to develop public transport vehicles and electric vehicles.

Finally, the development and utilization of clean new energy is the most fundamental way to reduce air pollution. Such as nuclear energy, solar energy, wind energy, biomass energy, geothermal energy and other energy sources are clean, rich in reserves and have great development prospects.

The destruction of the ozone layer is a global problem. The United Nations Environment Assembly decided that the production of chlorofluorocarbons, the "culprit" that destroys the ozone layer, will be phased out at the end of 1995. However, the life of HCFCs is 50 100 years. Up to now, only a small part of the150,000 tons of HCFCs discharged into the atmosphere has destroyed the ozone layer, and most of the rest are still in operation. The ozone layer will continue to be destroyed and will reach its peak in the first 10 year of the next century. As for the complete return to normal natural level, it will take at least a century!

Air pollution is caused by human activities, and finally it has to be solved by human beings themselves. It's just time waits for no one. We'd better take resolute action from now on and take measures to purify the air and give me back my blue sky!