Causes of global warming, hazards and countermeasures

It turns out that global warming can cause so much harm, especially in Africa.

Measures to combat global warming:

1. Improve energy utilization technology and energy efficiency, thereby reducing the use of coal, oil and natural gas, and reducing carbon dioxide.

emissions. 2. Adopt new energy, such as: solar energy, wind energy, geothermal energy.

marine energy, nuclear energy, hydrogen energy, etc.; It can also increase the proportion of water energy in conventional energy and indirectly reduce carbon dioxide emissions.

3. Strengthen international cooperation, learn from each other's strengths, and share advanced experience.

4. Save energy and improve energy efficiency, and develop clean energy.

afforestation, rational use of land (such as returning farmland to forest and grassland), etc.

5. Improve crop varieties, cultivate and select stress-resistant varieties, and readjust the structure of the grain industry.

and layout, the development of water-saving agriculture, etc.

6. Strengthen water resources management and storage, water conservation, development of aerial water resources, seawater desalination, etc.

7. Improve public health.

infrastructure, the establishment of an early warning system for climate change-induced diseases, etc.

8. Strengthen sea level rise.

monitoring, construction of protective dams, etc.

9. It has become the consensus of the whole society to increase green investment, advocate green consumption, promote green growth, and make green economy and low-carbon economy a new economic growth point in China.

10. Carry out pilot demonstrations of low-carbon economy, and carry out carbon emission trading in specific regions or industries.

11. Continue to carry out dialogue and exchanges on climate change policies with other countries, enhance trust and dispel doubts, carry out practical cooperation, enhance the understanding and awareness of all parties that China attaches importance to climate change issues and actively take actions and measures, and establish a good image of China as responsible.

The greenhouse effect。It causes most harm to human life and biodiversity.

Due to the heavy use and inefficient consumption of fossil fuels and the expansion of deforestation and agriculture, a large amount of greenhouse gases are emitted and a large amount of solar longwave radiation is absorbed. The increase in greenhouse gases is causing global warming.

The town then became a two-stage glacial melt and sea levels rose. As a result, the distribution of precipitation is uneven, and the phenomenon of drought and water shortage is aggravated. Meteorological disasters are frequent.

We should reduce the use of fossil fuels, improve fuel efficiency, develop new energy sources in the spring, change the structure of energy utilization, and use clean energy such as solar energy, wind energy, and so on. Control and stop the indiscriminate deforestation and the expansion of the area of agricultural and animal husbandry areas, vigorously carry out afforestation, and make use of the photosynthesis of plants.

Absorb greenhouse gases and reduce greenhouse gas content.

The countermeasures and recommendations for global warming are as follows:

1. Develop clean energy, renewable energy, and bioenergy, and strengthen the research and development of new technologies.

At present, China is a leader in the field of renewable energy, far ahead of other countries in solar and wind energy. Five of the world's six largest solar manufacturers are in China, and five of the world's top ten wind turbine manufacturers are also in China.

2. Develop a circular economy and maximize energy utilization.

The development of circular economy is the most effective way to achieve energy conservation and emission reduction from the source, such as using the ash after domestic waste incineration as a raw material for the production of cement; Establish an industrial park with reasonable and efficient utilization of copper, iron and sulfur resources; The burned crop straw is made into an edible mushroom ......All these can promote the country's energy conservation and emission reduction to a large extent.

3. Use ecosystem carbon sequestration to increase carbon sinks.

Forests are the main body of terrestrial ecosystems and play an important role in the global carbon cycle and climate change. Using the photosynthesis of plants, the carbon absorption and storage capacity of ecosystems can be increased, thereby reducing the concentration of carbon dioxide in the atmosphere. Therefore, increasing the total amount of forests, improving the quality of forests, and enhancing the ecological services of forests can all slow down the trend of global warming.

4. Advocate low-carbon life and green travel.

People can use low-carbon, green and environmentally friendly travel modes such as walking and cycling to reduce carbon dioxide emissions, which can not only maintain personal health, but also achieve the purpose of energy conservation and emission reduction.

5. In other aspects of daily life such as dressing.

As long as we can practice the concept of "thrift", we can also help fight climate change. For example, clothing consumes a lot of energy in the process of production, processing and transportation, and some studies have estimated that under the premise of ensuring living needs, each person can reduce carbon dioxide kilograms by buying one less unnecessary clothing per year.

The solutions to global warming are as follows:

Controlling greenhouse gas emissions: reducing the use of fossil fuels; improve energy efficiency; vigorously develop new energy; control of methane emissions from paddy fields and landfills, etc.

Increasing the absorption of greenhouse gases: afforestation; protection of primary forests; Carbon sequestration technology is used.

Adaptation to climate change: breeding new crop varieties; adjusting the structure of the agricultural industry; Construction of coastal dikes to prevent seawater intrusion.

The main causes of global warming:

1. Factors of rapid population growth:

The rapid increase in population is one of the main factors contributing to global warming. At the same time, it also seriously threatens the balance between the natural ecological environment.

With such a large number of people, the amount of carbon dioxide emitted by itself every year alone will be a staggering figure, and as a result, the amount of carbon dioxide in the atmosphere will continue to increase, and the resulting carbon dioxide "greenhouse effect" will directly affect the climate change on the earth's surface.

2. Atmospheric environmental pollution factors:

The increasing severity of environmental pollution has become a major global problem and one of the main factors leading to global warming. Research on global climate change has now clearly indicated that the temperature of the Earth's surface has been rising since the end of the last century.

3. Factors for the deterioration of the marine ecological environment:

The change in sea level is on a rising trend, and according to experts, it could rise by 50 cm by the middle of the next century. If measures are not taken, it will directly lead to the destruction and pollution of freshwater resources.

4. Forest resources have decreased sharply

Due to factors such as over-harvesting and natural disasters, the area of forests is decreasing significantly. population growth, local environment, ** development of agricultural development land policies, etc.

In addition, the losses from forest fires should not be underestimated. However, the main factor leading to the loss of forest area is the development of forests for the production of timber and forest products.

As a result of the high consumption of timber and forest products by consuming countries, the loss of global forest area is not just an internal problem of one country, it has become an international problem. The sharp decline of forest resources is also one of the factors contributing to global warming.

The problem of global warming has always been a problem on the minds of the earth, and in many cases, for nature and human beings, the earth is a place for everyone to live. The loss of the earth means that humanity will also be lost. The excessive exploitation of the earth and the waste of resources, as well as the destruction of the ozone layer by some chemicals, have caused the global state to deteriorate.

Therefore, it is urgent to take some measures to protect the planet now. The main solutions to global warming are as follows: First, energy conservation and energy efficiency. Second, we need to strengthen the management of water resources.

Third, strengthen the rise in sea level. Fourth, control the amount of carbon emitted and use new energy sources.

1. Promote clean energy stoves

In addition to the negative impact on the quality of the atmospheric environment and air pollution, traditional energy stoves have a negative impact on housewives.

The harm should not be overlooked. According to relevant statistics, the carbon black produced by inefficient traditional stoves.

Emissions cause about 1.6 million premature deaths each year.

In addition to improving health, the promotion of clean energy cookstoves (liquefied gas, diesel and electricity as energy stoves) will also help reduce the damage to forests by avoiding large amounts of wood and other biomass being used to make charcoal, helping households switch to alternative fuels (including solar cookstoves).

2. Reduce the use of fossil fuels

The incineration of fossil minerals to generate energy by humans in production activities is responsible for global warming.

One of the main reasons is that it is necessary for countries to improve the efficient use of energy and promote the development of new energy sources such as smart grids.

Biofuels, etc., should be included in the strategic agenda as soon as possible.

3. Solar concentrator power generation

Large-scale array dish mirrors are used to collect solar heat energy and use sunlight.

Thermal energy heats a gas or liquid inside a pipe or vessel to 400 degrees Celsius.

Left and right, the steam turbine generator is driven by hot vapor to generate electricity.

At the same time, the shadow area created by the huge mirror surface can be used for gardening, and the cooling desalination water produced by the power station can be used as irrigation water. This cold water can also be used for air conditioning. This means that a power station like this can provide not only electricity, but also fresh water and air conditioning.

Hazards:

1. Temperature: Global temperatures will rise. Between now and the end of this century, humanity will face an unprecedented rise in temperature. For this century, the more optimistic** scenario is a rise in global temperatures of nearly 6 degrees Celsius, with the most pessimistic scenario of a global temperature rise of nearly 6 degrees Celsius.

2. Ocean: sea level.

will be elevated. Sea levels are likely to rise by 20 to 80 centimetres within this century. The reason is that warming climate is causing the sea to expand and glaciers and sea ice floes to melt (the thickness of the Arctic ice floes has thinned by 40 in 50 years). In Greenland.

Since 1988, the rate of melting of glaciers has accelerated.

Reason: Too many greenhouse gases such as carbon dioxide are emitted.

Measures: Make the planet greener.

The causes of global warming include the earth, the cosmic environment, and human activities. The only thing that human beings can control is their own activities.

Now that the temperature is rising, the reason for the beginning of spring on December 22 this year.