2. Growing food destroys forests and fills up lakes, and many lovely animals and plants lose their homes and even their lives
3. Humans develop technology to better destroy nature.
4. Human construction of buildings and dams has changed the geological structure and increased environmental risks.
5. Cars, airplanes, ships, refrigerators, and televisions are all used without exception to damage the earth's environment
6. Human living waste, electronic waste, production waste, and nuclear waste all damage the environment.
7. Thermodynamics and statistical physics tell us that the entropy of an isolated system is increasing, modern biology tells us that life lies in the eating of negative entropy, special relativity and cosmology tell us that, under the known premise, the solar system can be regarded as a near-independent system, and the earth can be regarded as one of the systems that only have energy exchange with the outside world, and the energy exchange is near to the balance, so. We can get the following conclusion: human beings need to eat more negative entropy to live better, however, the decrease of human entropy is predicated on more increase of entropy of the whole earth system, therefore, human beings are destroying the earth. This is conclusive. The destruction of the ozone shield
Ozone (O3) is a derivative of oxygen. Trace amounts of ozone exist in the natural atmosphere, and its concentration varies with altitude. The concentration of ozone is greatest in the stratosphere (the atmosphere 20 to 25km above the earth's level). Ozone distributed in the stratosphere absorbs 99% of the sunlight's high-energy ultraviolet rays, which are extremely harmful to the Earth's biosphere. Measurements have shown that global ozone concentrations decreased by an average of 3.4 to 3.6 percent from 1978 to 1987; the ozone hole was observed over the Antarctic in 1985. Evidence suggests that the main cause of the destruction of the ozone shield is the photochemical reaction of hydrochlorofluorocarbons (HCFCs) emitted into the atmosphere by human activities. And the destruction of the ozone shield will certainly have a catastrophic impact on the earth's life system and human ecosystem.
The concentration of ozone in the atmosphere varies with altitude, and the concentration of ozone in the stratosphere is greatest in the atmosphere between 20 and 25 kilometers from the ground. The concentration of chlorofluorocarbons (CFCs) was zero before the Industrial Revolution, and is now 1×10-9. Anthropogenic emissions of HCFC-containing substances and nitrogen oxides in the stratosphere will reduce ozone through photochemical reactions. Since the 1970s, ozone in the Northern Hemisphere has decreased by 3 to 5.5 percent, and an ozone hole has appeared. The Antarctic ozone hole is growing at a rate equivalent to one United States land area per year, and thinning of the ozone layer, and even the appearance of an ozone hole, has been detected not only over the Antarctic, but also recently over the Arctic and the Tibetan plateau. Ozone is projected to decrease by more than 53 per cent by 2014. The hole in the ozone layer will increase ground-level ultraviolet radiation and skin cancer rates, as well as increasing juvenile fish mortality and livestock plagues, reduced grain yields, climate change and a host of other effects.
From a scientific point of view, these pressing environmental issues involve the interactions of all parts of the Earth, its stratosphere, and the habitability of the Earth as a planet. Recognizing and predicting changes in the Earth's environment is a serious challenge for the world's scientists. The ecological destruction
The population explosion and human activities have damaged the Earth's ecosystems in many ways, in direct and indirect forms, and many species of organisms are on the verge of extinction. How exactly the change in the distribution of species and the extinction of specific species affects human beings is not quite clear, but as a sign that the habitability of the earth as a place for human life activities is facing increasingly serious problems.
1, environmental pollution intensified
Global annual emissions into the atmosphere, CO2 for 5.7 billion t, CH4 about 200 million t. Emissions of harmful metals aluminum 2 million t, arsenic 78,000 t, mercury 11,000 t, cadmium 5,500 t, exceeding the natural background value of 20 to 300 times. SO2 emissions, induced by the frequency of acid rain is increasing, the area is expanding; Air quality is seriously declining, and 800 million people around the world live in air-polluted cities; the pollution of rivers, lakes and seas is becoming more and more serious, and the scarcity of fresh water has made 1.2 billion people live in water-scarce cities, and 1.4 billion people live without wastewater treatment facilities; the mortality rate of diseases caused by water pollution has become the most important hazard to human health; a large amount of municipal garbage, sewage, ship wastes, petroleum and industrial pollutants, and radioactive wastes are Influx into the sea, 20 billion tons of pollutants from the river into the sea each year, about 5 million tons of garbage was thrown into the ocean, the ozone layer is expanding in tens of thousands of square kilometers at the mouth of the sea. A population explosion
In the long history of human development, due to the high birth rate and high mortality rate offset each other, the world's population for thousands of years in a slow-growth situation. 1804, the world's population of only 1 billion. Since modern times, due to the mortality rate continues to decline, the world's population growth rate has gradually accelerated, at present, the global population to 80 million per year, the rapid growth of the population has become a major feature of today's world development. 1927 the world's population reached 2 billion, increased to 3 billion in 1960, increased to 4 billion in 1974, in 1987 exceeded 5 billion, and on October 12, 1999 reached 6 billion. Although birth rates in a few parts of the world have declined somewhat in recent years, the global population explosion continues. Currently, the highest birth rate is in the Gaza Strip in Palestine, with an average of 7.9 children per woman; 5.3 for women in Africa; 2.6 for women in Asia and Latin America; and 1.4 for women in Europe. This compares to a world average birth rate of 3.0 children. If the present birth rate is not greatly reduced, the world's population will stabilize only by the end of the 21st century, and by that time, the world's population will have increased to 12 to 14 billion.
The Third World accounts for the largest share of the amount of population passion. The latest research shows that 94 percent of population growth is coming from developing countries. 79 percent of the world's population lived in the Third World in 2000, and by 2020, that percentage will reach 83 percent.
Population explosion to the world's economic, political and social development has caused great pressure, especially in some developing countries, the population explosion has brought disastrous consequences for these countries, exacerbated the shortage of arable land, forests, fresh water and a series of critical resources
Resource shortages refers to the growing demand for human beings, including the means of production (mainly energy) and means of subsistence (mainly food), including resources appeared. Mainly refers to food), including means of production (mainly energy) and means of subsistence (mainly food), there is a shortage of resources. On the one hand, the population is growing rapidly, the demand for information is increasing, on the other hand, economic development and scientific and technological progress has led to excessive consumption of resources, which creates and exacerbates the problem of resource shortage. Rapid population growth is putting enormous pressure on natural resources, leading to the so-called "energy crisis", which is eating up the food produced by the "green revolution". Herman Daly As Herman Daly pointed out during his tenure as an environmental economist at the World Bank, the world has experienced a historic turnaround in a very short period of time. He said that the human economy has moved from the era of human resources constraints on economic development to a historical period in which "surplus natural resources have become the limiting factor for economic development", and that this evolution has been caused by the world's population from a relative lack of relative expansion.
Over the past 200 years, people on Earth have used about half of the world's total fossil energy reserves - the equivalent of 300 million years of solar radiation. In the 20th century alone, human society used more energy than has ever been consumed in recorded history combined