Human beings are the only intelligent life on the earth and the overlord of the earth. The earth has become different because of human beings. It has been upgraded from an ordinary life planet to a civilized planet. With the rapid development of science and technology in the past century, people’s living standards have been continuously improved, and human civilization has achieved a leap forward development. Now we have stepped out of the earth and begun to explore the universe.
With the rapid development of science and technology, although human civilization has realized the dream of flying and exploring the universe, the side effect of science and technology is becoming more and more serious, which is the continuous destruction of the environment.
In recent decades, for the rapid development of science and technology, a large number of deforestation, so that a large number of vegetation disappeared, at the same time, a large number of industrial waste gas emissions, resulting in the increasing depth of carbon dioxide in the atmosphere, the global temperature caused by the greenhouse effect is rising, especially in recent years, this trend is more obvious, I believe you can clearly feel that every summer It’s too hot.
Through some scientific data, we know that the emission of pollutants has not decreased in recent years, and the annual carbon dioxide emission is reaching a new high. According to the warning of scientists from the Meteorological Bureau, on the basis of reaching a new high in 2018, the carbon dioxide level is expected to rise rapidly in 2019, because more plants cannot absorb it due to the burning of fossil fuels and dry climate Greenhouse gases, greenhouse gases are likely to reach record levels.
This data and warning from scientists also indirectly tells us that the days in 2019 will be more difficult and the climate will change more. I believe many friends still remember that after the advent of last summer, the rising high temperature made people miserable. For example, there were many people who died of high temperature in Japan. Many countries in the world, which were not very hot in the past, also set a new high in temperature last year.
According to the Met Office, 2019 is likely to be one of the biggest CO2 surges in more than 60 years of measurement. According to the data before 2018, the global emissions of fossil fuels continue to maintain. The increase of emissions will be accompanied by the depletion of grassland and forest and the reduction of greenhouse gas absorption. So that more pollutant gases “precipitate” in the atmosphere.
Another impact of the rising global temperature is the frequency and intensity of typhoons. I believe we all remember that one strong typhoon after another appeared last year, and almost every day typhoon expectations were issued. Many friends joked that 2018 was like poking a typhoon nest. Then, according to the latest data of scientists, the temperature in 2019 may reach a new high, the typhoon may be no less than that in 2018, and the coastal areas will continue to be frequently attacked by typhoons.
Since scientists all know that the root cause of global warming is the emission of a large amount of carbon dioxide, why do we reduce the emission effectively? In fact, in recent years, countries around the world are also actively taking various measures to reduce emissions, but the effect is not obvious. What we can feel is that the trend of global warming has not been controlled, and carbon dioxide emissions have not decreased, but are still increasing. Why?
According to the scientific prediction, the carbon dioxide content in 2019 may reach 411ppm. According to the prediction of the Met Office, the average growth of carbon dioxide will reach about 2.75ppm, which is the third largest annual growth in history. Carbon dioxide is still the biggest cause of climate change. Since we all know it, why can’t we effectively control it?
In fact, the main reason is that human beings don’t want to slow down the pace of science and technology. Maybe some people don’t understand the relationship between the dramatic reduction of carbon dioxide emissions and the pace of human science and technology? There’s a lot to do with it. As we all know, chemical fuel is still the most used by human beings, which is the mainstream energy. It is impossible to achieve much change before controllable nuclear fusion is fully mastered.
Since it is a chemical fuel, whether it is coal, oil, natural gas or combustible ice, they will emit carbon dioxide more or less. It does not mean that burning natural gas and combustible ice will not cause pollution and carbon dioxide emissions. It is just natural gas and combustible ice will reduce carbon dioxide emissions compared with coal and oil.
Although in recent years, the industrial pollution control is very strict, and there are fewer polluting enterprises, and many enterprises have installed purification equipment, the amount of carbon dioxide emissions has not been reduced. The reason is not complicated, that is, the result of a large amount. Compared with 10 years ago, the number of industrial enterprises in the world is increasing rapidly. These industries will also emit carbon dioxide.
In addition, the exhaust emission of fuel vehicles is also a major pollution. Now there are more and more families with cars. Take China for example. In recent years, people’s income has been increasing and the price of cars has been decreasing. Therefore, more and more people buy cars. It is not too much for each family to have a car on average.
The increasing number of cars will inevitably bring more carbon dioxide emissions. In addition, many other technology products will also bring carbon dioxide emissions, and the number of these technology products is also increasing in recent years. This is also the reason why although we are actively carrying out various environmental pollution control every year, the emission of carbon dioxide is still reaching a new high.
In fact, if you want to significantly reduce the carbon dioxide content in the atmosphere, it is also very simple, that is, stop using the technology products that can cause carbon dioxide emissions, such as cars, air conditioners, power plants, etc. But is that possible? I believe many people will say that it is impossible. Take cars for example, if you stop fuel vehicles all over the world and put them on the road, I believe the consequences will be more serious. First of all, so many auto companies in the world will not agree.
Only when the electric vehicle can completely replace the fuel vehicle can the combustion vehicle be withdrawn from the stage of history. However, it may take about 50 years for the electric vehicle to completely replace the fuel vehicle. In addition to cars, planes, ships and so on are burning oil, can you stop all the planes and ships? It’s impossible to think about it.
There are all kinds of impossibilities, so scientists can not think of a better way to slow down the current carbon dioxide emissions, and the rising trend of global temperature is difficult to control. As long as human science and technology still want to maintain rapid development, industrial development can not stop or even slow down, and it may also have to speed up the development, so that carbon dioxide emissions will naturally increase.
Of course, science and technology can change the world, and science and technology can also solve the current environmental problems facing the earth. As long as human energy science and technology get a major breakthrough, controllable nuclear fusion research is successful and fully applied, then these environmental problems will be solved. Nuclear fusion is a kind of clean and pollution-free energy, which can completely replace all the chemical fuels. Without pollution sources, there will be no large amount of carbon dioxide emissions. The carbon dioxide content in the atmosphere will slowly return to normal level, and the global temperature will slowly drop down and return to normal.
However, it is not so easy for controlled fusion to succeed. 100 years ago, scientists said that it would be successful in another 100 years. However, 100 years later, scientists say that it may take another 100 years for human beings to completely master controllable nuclear fusion. Maybe 100 years later, scientists will say that controlled fusion will take another 100 years to succeed.
From this, we can see how difficult the technology of controllable nuclear fusion is. Its research can be carried out for hundreds of years, but will the earth leave mankind hundreds of years? We can only expect that major breakthroughs in science and technology can solve the problem of the current deterioration of the earth’s environment, and we should also do a good job in coping with the upcoming high temperature weather and frequent strong winds in the summer of 2019.
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