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Global warming is mainly caused by excessive carbon dioxide emissions, after global warming, the temperature of the earth will drop suddenly, because due to the cutting off of the warm current in Mexico, resulting in the recurrence of ice ages in Canada and western Europe, 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, the glaciers in the Arctic and Antarctic will decrease by 90% in 50 years, ice storms will sweep the earth after 70 years, and 100 years later, The earth is 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!
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bbc.Global warming is great.
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It's not just CO2 issues, it's also our activities. Construction makes the surface absorb too little heat, and of course the air temperature is high, and the solution is to build a mountain to change the world's climate and environment.
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Excessive greenhouse gas emissions.
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The solutions to global warming are as follows:
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. We will 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, and is far ahead of other countries in the sale of 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. Develop a circular economy to 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 ......These can greatly promote the country's energy conservation and emission reduction.
Use ecosystems to sequester carbon and 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.
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The effects of global warming are as follows:
Harm to the environment:
1. Melting glaciers (mainly the effects of continental glacial melting) have caused global sea levels to rise, threatening countries with lower coastal elevations or more economically developed areas.
2. It may increase the frequency of extreme weather, such as drought, flood, extreme temperature, etc., which will affect the survival of organisms, and the precipitation in low-latitude areas may decrease, which will have a greater impact on agriculture.
3. Affect the global ecosystem, change the ecological environment and accelerate the rate of biological extinction.
Harm to humans:
1. The rise in temperature will provide air and ocean kinetic energy, forming super-large typhoons, tsunamis and other disasters. Every year, more and more disasters will be faced, and at the same time, typhoons and tsunamis will also damage buildings and threaten human life, and will also bring mudslides and landslides, causing huge hidden dangers to human beings.
2. The rise in temperature will also lead to a significant reduction in grain and feed production in inland areas, and the shortage of grain and meat.
3. The accumulation rate of melting icebergs when the temperature rises is not as fast as the melting rate returns, so the icebergs are not accumulating, and we have no fresh water to drink.
4. The rise in temperature has gradually broken the food chain in nature.
Causes of Global Warming:
1. Factors of rapid population growth.
The rapid increase in population in recent years 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.
Before the nuclear crisis, the increasing environmental pollution has become a major global problem, and it is also 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. Deterioration factors of marine ecological environment.
At present, the change of sea level is on a continuous upward trend, according to the relevant experts** by the middle of the next century, the sea level may rise by 50cm, which will directly lead to the destruction of freshwater resources and pollution and other adverse consequences.
In addition, a large amount of toxic chemical waste and solid waste generated by land-based activity sites are continuously discharged into the ocean; Major oil spills (leaks) in seawater and the destruction of the ecological environment in coastal areas caused by human activities are the main factors leading to the destruction of the seawater ecological environment.
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