According to authoritative statistics, about 4.3 million people in China were diagnosed with cancer in 20 15. 2.8 million people died of cancer, with an average of 7,500 people every day. What is even more frightening is that the morbidity and mortality are still rising.
The scientific community has reached a consensus that nearly 90% of cancer causes are related to the environment and lifestyle.
1952 The toxic smog incident in London and the photochemical smog incident in Los Angeles claimed thousands of lives.
From 1950s to the end of 1970s, the desertification area in China increased by 1500 square kilometers every year, and in 1980s, it increased to 2,460 square kilometers every year, which was equivalent to losing the land area of a medium-sized county every year.
In 2000, the heavy metal pollution incident on the Danube caused all living things on both sides of the river to be almost extinct.
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All the above are the most basic problems that environmental problems will bring to us: carcinogenesis, smog, land desertification, biological disasters caused by water pollution and so on.
1. Haze hazard: Winter fog is called "winter killer". Coupled with industrial waste gas, automobile exhaust, dust in the air, bacteria and viruses in the air, these substances mix together and enter the human respiratory tract, which may cause acute respiratory infection (cold), acute bronchitis, asthma and so on.
Haze picture
2. Harm of desertification: (1) Harm to agriculture: Every spring sowing season, seeds and fertilizers are blown away, seedlings are even uprooted, soil moisture is lost, and farming time is delayed; (2) The grassland is degraded, and the dominant grass species suitable for livestock growth are gradually reduced or even completely lost; (3) blocking rivers, reservoirs and canals; (4) It will lead to terrible sandstorms.
Desertification picture
3. Hazard of water pollution: (1) It is harmful to human health. Entering the human body through drinking water and food chain, some things will accumulate in the human body, eventually leading to acute or chronic diseases and even cancer; (2) Harm to industry and agriculture. Industrial water must be put into more treatment costs, resulting in waste. The requirements for food water are more stringent; (3) Eutrophication of water will harm aquatic animals and plants, and will eventually affect human beings.
Water pollution photos
Whether from the present development of mankind or the survival of future generations, environmental problems have always been the focus of our attention. Lucid waters and lush mountains are invaluable assets. While advancing and developing at a high speed, we should also take into account the challenges brought by environmental problems and the pressures we bring to the environment. I hope our environment is getting better and better and our society is getting better and better!