What are the main problems related to air pollution that affect the global environment at present?

The direct causes of air pollution in China are: industry, domestic stoves and heating boilers, and transportation.

1. Industry: Industry is an important part of air pollution. There are many types of pollutants emitted into the atmosphere by industry, and their properties are complex, including soot, sulfur oxides, nitrogen oxides, organic compounds, halides, carbon compounds, etc. Some of them are soot, and some are gases.

2. Domestic stoves and heating boilers: A large number of civil living stoves and heating boilers in the city need to consume a large amount of coal, and a large amount of dust, sulfur dioxide, carbon monoxide and other harmful substances will be released during the combustion process of coal to pollute the atmosphere. Especially in winter, when heating, it often fills the polluted area with smoke and chokes people's cough, which is also a source of pollution that cannot be ignored.

3. Transportation: Automobiles, trains, planes, and ships are the main means of transportation in contemporary times, and the exhaust gas produced by burning coal or oil is also an important pollutant. In particular, the number of cars in the city is large and concentrated, and the pollutants emitted can directly invade people's respiratory organs, which is very serious to the air pollution of the city, and has become one of the main sources of air pollution in the big city.

The exhaust gases emitted by automobiles mainly include carbon monoxide, sulfur dioxide, nitrogen oxides and hydrocarbons, and the first three substances are very harmful.

1. Climate warming.

Global warming, the heat energy brought about by the rise in temperature supplies the air and the ocean, resulting in the formation of large or even super-large typhoons, hurricanes, tsunamis and other disasters; Rising temperatures can exacerbate water evaporation from land and sea, causing widespread drought in inland areas and disrupting coral-centric biological chains in the ocean.

2. Ozone layer depletion.

The destruction of the ozone layer and the emergence of the ozone hole are caused by human behavior, that is, the production and use of ozone-depleting substances (ODS) in large quantities and the emission of large amounts of exhaust gases into the air. ODS mainly includes the following substances: CFS (chlorofluorocarbons), halons (halon, perbromofluorocarbons), carbon tetrachloride, methyl chloroform, methyl bromide, etc.

3. Land desertification.

Land desertification and desertification are a gradual process, but their hazards and the resulting disasters are long-lasting and far-reaching. Land desertification and desertification directly lead to soil erosion, the disappearance or even extinction of animals and plants in the region, and cause devastating harm to the regional ecosystem. Humanity is faced not only with poverty caused by declining soil productivity, but also with threats to river security and sandstorms.

There are two main types of environmental problems facing the world: primary environmental problems and secondary environmental problems.

Native environmental problems are caused by natural forces and are also known as primary environmental problems. There are mainly volcanic eruptions, floods, droughts, landslides, etc.

Secondary environmental problems are caused by ecosystem damage and environmental pollution caused by human production and living activities, mainly including resource shortage, environmental pollution, ecological damage, etc., and environmental pollution is mainly divided into chemical pollution, biological pollution, physical pollution (noise pollution, radioactivity, electromagnetic waves), solid waste pollution, energy pollution, etc.

1. Climate warming.

2. Ozone layer depletion.

3. Biodiversity is decreasing.

4. Acid rain. 5. Forests are declining.

6. Land desertification.

7. Air pollution.

8. Water pollution.

9. Marine pollution.

10. Solid waste pollution.

The population is skyrocketing, and foreigners don't practice family planning.

There are many aspects to the global problem of air pollution, and here are some of the main ones:

1.Greenhouse gas emissions: Emissions of large amounts of greenhouse gases such as carbon dioxide, methane, and nitrous oxide contribute to global warming, triggering extreme weather events and rising sea levels.

2.Air pollution: Many cities and industrial areas face air pollution problems, mainly including particulate matter, sulfur dioxide, nitrogen oxides and volatile organic compound emissions, which are harmful to human health and the environment.

3.Acid rain: Sulphur dioxide and nitrogen oxides emitted by the Royal Spring react with water vapor and oxygen in the atmosphere to form sulfuric acid and nitric acid, and the acidic precipitation that falls causes damage to soil, water and ecosystems.

4.Ozone layer depletion: Substances such as chlorofluorocarbons (CFCs) produced by human activities destroy the ozone layer in the atmosphere, leading to increased ultraviolet radiation and posing a threat to human health and ecosystems.

5.Vehicle Exhaust and Industrial Emissions: Exhaust gases emitted from transportation and industrial activities contain harmful substances such as carbon monoxide, nitrogen oxides, and volatile organic compounds that negatively affect air quality.

6.Aircraft and ship emissions: Exhaust and exhaust gases emitted by aviation and the nautical industry contribute to atmospheric quality and climate change, especially aerosols and nitrogen oxides emitted at high altitudes.

7.Transboundary transport of pollutants: Air pollutants are not limited by national borders and can be transported to other regions through atmospheric circulation, causing pollution problems on a global scale.

These issues all have significant implications for human health, ecosystems and climate change. Therefore, global cooperation and effective emission reduction measures are key to solving the problem of air pollution. International cooperation and the formulation of environmental protection policies, the adoption of clean energy, the improvement of industrial production processes, and the promotion of low-carbon transportation modes are all important measures to address the global air pollution problem.

The global problem of early air pollution in Oga includes three major problems: the greenhouse effect, acid rain and ozone layer depletion. Global air pollution refers to the air pollution that harms the global environment caused by air pollutants in many countries, which brings real harm and potential threats to human survival.

Since the Industrial Revolution, the greenhouse gas emitted into the atmosphere by human activities has increased year by year, and the greenhouse effect of the atmosphere has also increased.

Ozone depletion refers to the phenomenon that ozone is depleted, destroyed and thinned in the ozone dense layer near 25 kilometers above sea level, which will cause excess ultraviolet radiation to reach the ground.

Acid rain refers to rain, snow or other forms of precipitation with a pH less than that, and the hazards include killing crops, corroding statues, etc.

There are two main ways of air pollution: harmful gases and dust Harmful gases mainly include carbon monoxide, sulfur dioxide, nitrogen dioxide and other gases; Gases such as sulfur dioxide and nitrogen dioxide pollute the air to cause acid rain, and fluorine-containing compounds pollute the air to destroy the ozone layer

Therefore, the answer is: sulfur dioxide, nitrogen dioxide and other gases pollute the air to cause acid rain; Fluorine-containing compounds polluting the air can damage the ozone layer.

Answer] :(1) Global climate change: caused by the emission of carbon dioxide and other greenhouse gases.

2) Acid rain: caused by the emission of acid rain precursors (such as sulfur dioxide and nitrogen oxides).

3) Ozone layer depletion: Ozone-depleting substances such as freon and halons emit too much.

4) The diversity of biological locust has decreased sharply: caused by natural regression and human factors.

5) Sharp deforestation: caused by natural and human factors.

6) Land desertification: caused by natural and human factors.

7) Air pollution: excessive discharge of harmful gases and particulate pollutants from industry and human life into the atmospheric environment.

8) Water pollution: Excessive discharge of physical, chemical and biological pollutants into water bodies.

9) Marine pollution: pollutants from land, atmosphere, and rivers.

10) Transboundary movement of hazardous wastes: Hazardous solid wastes from developed countries are transferred to developing countries.