1. Humans rely on scientific achievements without thinking.

Turn someone's head into treasure,

Become lazy,

Reduced labor force,

Most people are on the verge of being fired.

1: Environmental pollution. This is the most direct and obvious disadvantage.

2. Species extinction is accelerating. This is the development of science and technology caused by environmental pollution and human killing.

shortcomings

3. Personal safety is increasingly insecure. There are now tens of thousands of crimes on average every day. Most of their criminal methods are related to the current new technology. Especially gun-related crimes, ordinary people can't prevent them. From the Second World War, we can already see that with the development of science and technology, the damage and losses caused by the current war are far from comparable.

It may even lead to the fate of human extinction.

Human's physical quality is not as good as before. With the development of science and technology, the emergence of vehicles such as air cars, trains and planes has greatly changed human daily life. Human beings are no longer always dependent on their own legs, so the physical quality of human beings is not comparable to that in the past. In today's society, it is impossible for Xiang Yu to "pull out mountains and rivers". If this situation continues to develop, it may make people's limbs atrophy and make people.

A new form has emerged.

5. All kinds of emerging germs appear constantly, and the lethality of many germs has far exceeded the destructive power of previous germs. This is because the rapid development of medical science and technology has accelerated the mutation of virus, so that the development speed of science and technology can not keep up with the mutation speed of virus. Maybe one day mankind will perish because of a great plague.

Environmental pollution. This is the most direct and obvious disadvantage. People always think that the land, sea and air on the earth are endless, so they never worry about sending tens of millions of tons of waste gas into the sky and dumping hundreds of millions of tons of garbage into the ocean. Everyone thinks the world is so big. What kind of waste is this? We were wrong. In fact, although the earth is large (with a radius of more than 6,300 kilometers), creatures can only live in the range from 8 kilometers above sea level to the seabed 1 1 km, and 95% of the creatures can only live in the middle range of about 3 kilometers. People have polluted this limited living environment in three ways. Marine pollution: mainly crude oil leaked from oil tankers and oil wells, pesticides and fertilizers used in farmland, sewage discharged from factories and acidic solutions from mines; They pollute most marine lakes. Therefore, not only marine organisms are harmed, but birds and humans may also be poisoned by eating these organisms. Land pollution: garbage disposal has become an important issue in major cities. Tens of millions of tons of garbage every day, many of which cannot be burned or decomposed, such as plastics, rubber, glass, aluminum and other wastes, have become the number one enemy of urban sanitation. Air pollution: this is the most direct and serious, mainly from carbon monoxide and hydrogen sulfide released by factories, automobiles and power plants. Every day, people get diseases of respiratory organs or visual organs because of contact with these dirty air. If we still ignore the warnings of experts, we will definitely be reduced to the point where there is no half an inch of pure land to live in. The extinction of species is accelerating. This is caused by environmental pollution and human hunting. It also belongs to the disadvantages of scientific and technological development. Personal safety is becoming more and more insecure. Now tens of thousands of crimes occur on average every day. Most of their criminal methods are related to the current new technology. Especially gun-related crimes, ordinary people can't prevent them. From the Second World War, we can already see that with the development of science and technology, the damage and losses caused by the current war are far from comparable.

Increasing day by day. From 65438 to 0996, the consumption of plastic packaging in China reached 2.43 million tons, with an average annual growth rate exceeding.

20%, especially in cities, main traffic routes and tourist attractions, plastic waste is increasing rapidly.

According to the survey, the annual output of domestic waste in Beijing has reached 3 million tons, of which waste plastics account for about 3%, increasing year by year.

The growth rate reached 48%. The content of plastic in garbage in coastal cities is higher, reaching 8- 10%. These wastes

If the proportion of plastic in garbage is calculated by volume, it has reached more than one third, and it has greatly increased.

The difficulty and cost of garbage disposal.

Because waste plastics are difficult to degrade for hundreds of years, if discarded in the natural environment, it will give mosquitoes, flies and

Bacteria provide a hotbed for survival and reproduction; If buried underground, it is easy to pollute groundwater and hinder plant roots.

The growth of strains destroys soil quality and affects crop harvest; If you burn with fire, it will produce a variety of toxic gases.

Body. "White pollution" has become a major public hazard that harms the social environment of China and seriously hinders the development of China.

Sustainable development of economy and environment.