As time goes by, the achievements of science and technology are also rising day by day.

However, this has brought disaster to the earth-the destruction of the atmosphere and ozone layer; Pollution of the sky; Animals are dying out ... these are "glorious deeds" of overusing and inventing science and technology.

Why is this happening? Due to the progress of society and the great improvement of productivity, the depreciation rate of products is getting faster and faster, and a large number of durable products are quickly eliminated by consumers, resulting in a sharp increase in the amount of garbage. In developed countries, outdated cars, household appliances and even computer parts have become unattended garbage. This kind of garbage has high landfill cost, difficult incineration and great damage to the environment.

Gaseous pollutants brought by high technology also pose a great threat to human survival. For example, chlorofluorocarbons, the main raw materials of refrigeration industry and plastic industry, have caused serious damage to the ozone layer. In the past ten years, the number of ozone holes on the earth has increased to five, with a total area of nearly 40 million square kilometers, which is close to one tenth of the earth's surface area. Fortunately, at present, these caves are in no man's land such as Antarctica, Arctic and Siberia, otherwise the ultraviolet rays in the sun will lead to the extinction of human beings and animals.

High-tech garbage also includes space garbage: space garbage refers to abandoned spacecraft and components running in low-earth orbit. At present, there are about 3000 tons of space junk around the earth. Space debris flying around at high speed in low earth orbit poses a serious threat to various satellites with a unit value of billions of dollars, and the probability of direct accidents is increasing.

Now technology is destroying the world while creating a beautiful world!