What are the actions of humans that contribute to climate warming?

Automobile exhaust emissions, combustion of coal, etc., which produce greenhouse gases such as carbon dioxide, and air conditioners containing Freon-containing refrigerants.

Deforestation and massive emissions of greenhouse gases.

Fuel consumed by industrial production and human life.

The conscious or unconscious impact of human beings on the climate in the process of production and life, including the climatic effects of changing the composition and water vapor content of the atmosphere, releasing heat to the atmosphere, and changing the physical and biological properties of the underlying surface.

Extensive use of fossil energy and nuclear energy. This includes the use of coal, oil, timber and nuclear energy, which itself releases a lot of heat and also produces a lot of greenhouse gases.

Intensify global warming.

Massive destruction of surface green vegetation. These include deforestation, land reclamation, city-building campaigns, overhaul of roads and railways, dams, and changes in the ecosystem of water bodies.

Wait a minute. Such activities will greatly reduce the cover of green vegetation on the surface and destroy the soil ecology, resulting in the inability to effectively absorb stationary solar energy and greenhouse gases, and exacerbate global warming.

Artiodactyls are bred in large numbers.

Domestic animals and artiodactyls emit greenhouse gases, which can be raised in large quantities and contribute to global warming.

The main causes of global warming:

It is the human race that has used a large amount of fossil fuels (such as coal, oil, etc.) for nearly a century, emitting a large amount of CO2 and other greenhouse gases.

These greenhouse gases contribute to global warming.

Global warming causes global precipitation.

Redistribution, melting of glaciers and permafrost, rising sea levels.

It not only endangers the balance of the natural ecosystem, but also threatens the survival of human beings.

There are pros and cons to the impact of global warming on crop growth. Changes in global temperature directly affect the global water cycle, causing droughts or floods in some areas, resulting in reduced crop yields, and high temperatures are not conducive to seed growth.

Increased precipitation, especially in arid regions, can positively contribute to crop growth. The increase in carbon dioxide levels associated with global warming will also promote photosynthesis of crops, which will increase yields. The increase of temperature is conducive to the increase of crops that like humidity and heat in high latitudes.

Without the greenhouse effect, the Earth's surface would be extremely cold, the temperature would drop to minus 20, the oceans would freeze, and life would not form. When the world's average temperature rises1, dramatic changes occur: sea levels rise, mountain glaciers retreat, and snow cover shrinks.

As a result of rising global temperatures, this leads to uneven precipitation, with increased precipitation in some areas and decreased in others.

Global warming is mainly caused by excessive emissions of carbon dioxide, the earth's temperature will drop sharply after global warming, because due to the cutting off of the warm current in Mexico, the right to cause Canada and western Europe to appear again Ice age, due to sea level**, many islands will be covered under the sea, Venice will disappear from the map forever in 20 years, the Maldives will sleep under the sea in 35 years, and the glaciers in the Arctic and Antarctic will decrease by 90% after 50 years. Seventy years later, an ice storm swept the earth, and 100 years later, the earth was disfigured.

In fact, in the final analysis, global warming is the most important thing to freeze people to death!

Don't let the 2012 nightmare happen again!

Global warming has directly led to ultra-high temperatures and heart disease in some areas in summer.

and various respiratory diseases, which take the lives of many people every year, among which newborns and the elderly are the most dangerous. Global warming has led to an increase in ozone concentrations, and ozone in the lower air is a very dangerous pollutant that can damage human lung tissue and cause asthma or other lung diseases. Global warming is also causing the spread of certain infectious diseases.

1. The impact of sea level rise In the past 100 years, the sea level has risen by 14 4 cm, and China has risen by 11 5 cm. The main reason for the rise in sea level is the thermal expansion of the seawater, which rises when the ocean warms. Global warming causes the melting of icebergs at the Earth's north and south poles, which is one of the main causes of sea level rise.

The direct impact of sea level rise is as follows: (1) Flooding of lowlands: Global warming has raised sea level, and people in coastal areas have to raise flood control levees to protect people's lives and property.

For example, the Netherlands, which is already very low, is facing an increasingly difficult situation due to rising sea levels. Many island countries in the Pacific, such as Tuvalu, have migrated due to rising sea levels.

2) Coastal erosion.

3) The salinity of surface water and groundwater increases, affecting urban water supply.

4) Rising groundwater levels.

5) Tourism is jeopardized. Beach tourism along the coast has always been popular. Rising sea levels have led to erosion of beaches and loss of scenery; Some coastal attractions have been wiped out, directly affecting tourism revenues.

6) Affect the livelihood of coastal and island residents. Coastal areas, which account for one-third of the world's population, are the most economically developed. Rising sea levels will wipe some economically developed island nations off the ground, as will some large coastal cities such as Shanghai and New York.

2. Effects on animals and plants.

Climate is the main determinant of the distribution of biological communities, and climate change can change the adaptability of different species in an area and the competitiveness of different populations within ecosystems. Plants and animals in nature, especially plant communities, may be doomed by adaptations that are unable to adapt to the rate of global warming. Past climate changes (e.g., ice ages) have caused the disappearance of many species, while some species have benefited from warming, such as the reduction of natural predators due to warming and the expansion of habitats due to warming.

3. Impact on agriculture.

The distribution of temperature and precipitation throughout the year is a major factor in determining which crops to grow, and changes in temperature and temperature-induced precipitation will affect the yield of food crops and the type of crop distribution. Climate change has led to major changes in the spatial (latitudinal) distribution of biozones and biomes, such as the growing of maize in Norway due to climate warming, and the subsequent disappearance of maize in Norway during interglacial periods. In addition to this, global warming will also exacerbate natural disasters such as high temperatures, heat waves, tropical storms, and tornadoes.

As a result, the stability and distribution of world food production will change significantly as global temperatures rise.

4. Impact on human health.

Human health depends on a good ecological environment, and global warming will be a major factor in human health in the next century. Extreme heat will become a more frequent and common health problem for people in the next century, mainly reflected in increased morbidity and mortality, especially some infectious diseases will endanger tropical regions and countries, and some diseases that currently occur mainly in tropical regions may spread to mid-latitude regions with climate warming.