What other dangers are there for the planet?

Soil destruction Arable land is now decreasing in fertility in 110 countries. In Africa, Asia and Latin America, soil erosion is severe due to the loss of forest cover, overexploitation of cultivated land and overgrazing of pastures.

Air Pollution The problem of air pollution is also a problem of acid rain. Previously, the problem of acid rain had only concerned the older industrialized countries of Europe and North America. But now, parts of Asia and Latin America, where the economy is booming, are also being hit by acid rain.

Air pollution also disrupts the functioning of ecosystems, accelerates the damage to homes, and leads to climate variability.

Fresh water is threatened.

In developing countries, 80% of 90% of diseases and more than 1 3 deaths are related to bacterial infections or chemically contaminated water. Today, 10,000 men, women and children die every day from water-borne diseases.

climate change and energy waste.

The greenhouse effect is a serious threat to humanity as a whole. According to a representative group of 2,500 experts, sea levels will rise, and rising temperatures will have serious impacts on agriculture and ecosystems.

Reduced forest area.

Over the past few hundred years, temperate countries have lost most of their forests. In recent decades, the decline in forest area in tropical countries has also been severe. At the current rate of forest loss, in 40 years' time, forests will be inaccessible in some Southeast Asian countries.

Reduction in biological variety.

Due to urbanization, agricultural development, deforestation and environmental pollution, the natural areas where organisms exist are becoming smaller and smaller, which has led to the extinction of thousands of species.

Chemical pollution Millions of chemical compounds from industry are found in the air, soil, water, plants, animals, and the human body. Even the ice caps, which are the last large natural ecosystems on Earth, are polluted.

Chaotic urbanization.

The deterioration of the population and the deterioration of agricultural land and poverty have prompted millions of peasants in the Third World to leave the countryside and gather in the slums of the big cities. With the advent of the new century, living conditions in some large cities will deteriorate further.

Overexploitation of the oceans and pollution of coastal strips.

As a result of overfishing, the ocean's fishery resources are dwindling at a frightening rate. As a result, many poor people who depend on seafood protein for their livelihoods are at risk of hunger.

The polar ozone layer hole.

Every spring, an ozone layer hole is formed over the Earth's two polar regions, with the loss of the ozone layer in the Arctic by 20 30 and the ozone layer in the Antarctic by more than 50.

1. Land pollution: The cleaning of garbage has become an important problem in major cities, and many of the tens of millions of tons of garbage every day cannot be incinerated or corrupted, such as plastic, rubber, glass and other human enemies.

2. Marine pollution: mainly leakage from oil tankers and oil wells, pesticides and fertilizers used in farmland, sewage discharged from factories, and acidic solutions from mines; They pollute most of the ocean's lakes and cause damage not only to marine life, but also to birds and humans who can be poisoned by eating them.

3. Air pollution: refers to the concentration of pollutants in the air reaching or exceeding the harmful level, resulting in the destruction of the ecosystem and the normal survival and development of human beings, and causing harm to people and organisms. This is the most direct and serious disease, mainly from carbon monoxide and hydrogen sulfide emitted from factories, automobiles, power plants, etc., and people are infected with respiratory or visual diseases due to exposure to these dirty air every day.

1. The biggest factor that endangers human beings on Earth is human beings themselves, especially war. As the power of human beings becomes more and more powerful, it is likely that the destruction of the earth and mankind will be the war of mankind itself.

2. The large-scale factories of human beings and the rapid development of human society have discharged a large amount of garbage and waste residue into the surface and sky of the earth. These waste residues pollute the earth and cause many animals to lose their homes. Human beings themselves have created an environment for themselves that is also painful.

3. Unintentional impact of an asteroid. This is a devastating blow to the planet. It is also the most terrible and helpless crisis facing the earth.

4. Volcanic eruptions can be dust that covers the sky and the sun, burying hundreds of miles of land. Destroy island creatures, terrestrial forests. This terrifying destructive energy is also something that humans cannot stop.

5. The sudden occurrence of ** has brought sudden and very heavy losses to life on earth and human beings. Endangering the diversity of life on Earth and the precious life of human beings. The tsunami was even more terrifying, engulfing coastal cities.

1. Water pollution: abnormal water sensory properties, inorganic pollutants, organic pollutants, microorganisms, radioactivity and other five categories of indicators, resulting in the control of the water production process and the control of the water quality of the factory water to varying degrees, and the water quality of the water supply is harmful to the quality of the water supply and human health;

2. Air pollution: Air pollution refers to the content of some substances in the atmosphere to the extent that it destroys the ecosystem and the conditions for the normal survival and development of human beings, and causes harm to people or things;

3. Global warming: Global warming is a phenomenon related to nature. Caused by the burning of fossils by burning materials such as oil, coal, etc., or cutting down forests and burning them, a large amount of carbon dioxide is produced;

4. Ozone layer hole: It is the place where the ozone concentration is the largest in the stratosphere of the atmosphere, and it is a protective layer of the earth, and most of the sun's ultraviolet radiation is absorbed by it.

There is no danger to the planet.

For the earth, human beings are too small, not so much what kind of harm the earth is facing, but what kind of harm human beings themselves are facing. These hazards are caused by human beings: air pollution, high carbon dioxide concentrations, the greenhouse effect, rising sea levels, and the gradual erosion of land area.

All of this is just human doing.

Pollution, usually some littering and confetti and other things, will cause the deepening of the earth's pollution, ecological imbalance, recently because of the global warming phenomenon ...... our human beings

There is a lot of pollution. It's ecologically unbalanced. Sooner or later.

But the biggest thing is that there are no aliens visiting the earth