On the issue of environmental protection

1. The earth is the only home on which we human beings live. In this home, man is the master of the earth. Besides us, there are many living things, such as flowers and trees, insects, fish, birds and animals. These creatures live in the same environment as us, and together they form this big family.

second, water is the source of life, and people's lives cannot be separated from water. The water contained in the human body accounts for about 65% of the body weight. If the human body loses more than 1% of the water, it will lead to death.

third, air is a necessary condition for people to survive, and people breathe air all the time. Oxygen comes from photosynthesis of plants, and all kinds of plants are oxygen processing plants.

fourth, if there were no plants on the earth, we humans and other life would cease to exist. Wild animals depend on plants and can also protect them. Take birds as an example. 9% of birds feed on insects. Many beneficial birds are guardians of crops and trees and natural enemies of pests. 1 tree bugs can eat up the leaves of a big pine tree in ten days, while a pair of big tits can eat more than 4 bugs a day. Without these beneficial birds and pests, it would be overrun.

5. On the earth, human plants and animals are actually an interdependent "biosphere" and "circle of friends", and no one can live without anyone. The reason why human beings can survive on the earth is because of ecological balance. The earth provides us with a life support system-air, water, proper light and heat, energy and so on.

6. This primitive ecological balance is extremely rare from a global perspective. Today, we may only see it in places where humans have never set foot. The natural environment provides environmental resources for human survival and development, but at the same time, it has been destroyed by human opportunities. Only when the natural environment is in harmony with an ecological balance can the future of mankind be optimistic. Extended information

Environmental protection:

1. Cleaner production

Cleaner production is to use non-toxic or low-toxic raw materials with low impurities, reform production processes or update equipment, research and develop pollution-free and less polluting production technologies, develop green products, and reduce waste discharge per unit output. Macro-control the industrial structure, and take adjustment measures such as closing, stopping, merging, transferring and relocating industrial enterprises with high consumption, low efficiency and heavy pollution. Develop and use vehicles with low energy consumption or clean energy, and gradually eliminate and restrict the use of backward vehicles.

2. Make rational use of energy and resources

(1) Strengthen industrial production management and bring environmental protection into the management track of enterprise production and operation. Save energy and reduce consumption, reduce material loss, recycle combustible gas, waste heat and residual pressure, recycle and cross-utilize industrial three wastes, establish a closed production process, realize mechanization, automation and sealing of the production process, improve the equipment operation integrity rate, and prevent running, running, dripping, leaking and accidental discharge;

(2) improve the coal-burning technology, improve the combustion efficiency, give priority to the supply of low-sulfur and high-quality coal to the people, actively develop and adopt pollution-free and less-polluting energy sources, reform the fuel composition, gradually realize gasification and electrification, and expand joint heating or central heating.

3. Waste treatment

The industrial wastes that have no comprehensive utilization value for the time being should be purified. If the smoke and waste gas are controlled by waste gas purification and dust removal technology, they can be discharged after reaching the national emission standards. Municipal solid waste, human and animal excrement, sewage, etc. should be treated harmlessly. Hospital sewage may contain a variety of pathogenic microorganisms and radioactive waste, and it must be disinfected before it can be discharged.