The changes in the current environment are rarely paid attention to in weekdays, after all, we in China are rarely disturbed by natural disasters, but in recent times, Beijing has been covered by sandstorms, and people have once again attached importance to this topic.
Hello everyone, here is The Strange Story Secret Agent 009, today 009 for everyone to talk about the natural disasters that have occurred around the world, a brief analysis of this disaster, we have to face the "crisis"!
At present, with the rapid development of industry in various countries and the increase of population, people's demand for energy is increasing, and under the large amount of energy consumption, in addition to bringing more convenience to our lives, the concentration of carbon dioxide in the atmosphere has risen from 280ppm in the middle of the 18th century to 360ppm today, making the global climate warm.
This has also led to frequent droughts, high temperatures and other phenomena around the world, and at the same time, for some areas, it has also increased the frequency and intensity of fires, just like the "New Year's Eve fire" that occurred in Australia in 2019 and burned throughout 2020.
According to statistics, the fire caused more than 5.1 million hectares of land to be burned, thousands of houses to be reduced to ashes, a large number of wildlife and ecology damaged, and the worst of which was the air pollution in Australia, with PM2.5 concentrations exceeding the historical daily average of 95%, and air quality reaching 11 times the "dangerous" level!
After that, the worst-hit part of Australia, New South Wales, fell for several days in a row, which looked brown-black, like ink, with a pungent smoky smell, which was enough to prove how serious the local air pollution was.
Not only in Australia, but also in Saitama Prefecture, Japan, in March of the same year, "black rain" also fell, and the reason for the "black rain" is most likely because a local plastic factory caught fire, so that some of the gas produced by the burning of the colloid in the factory mixed with the rainfall, which is essentially the same as the "black rain" in Australia, that is, air pollution.
<h1 class="pgc-h-arrow-right" data-track="10" how to solve air pollution > has been a hot topic in the world? </h1>
In fact, this matter is not tricky, because trees can absorb carbon dioxide in the atmosphere to a certain extent to purify the air, and release fresh oxygen, and the forest has a more powerful effect, so the forest is also known as the "lung of the earth", but under the influence of the general environment, the current "lung of the earth" situation is also not optimistic.
According to the Nature report, forests around the world are gradually losing the ability to absorb carbon dioxide from the atmosphere, of which 20% of the world's forest area, the world's largest rainforest amazon rainforest is the most serious situation, according to researchers speculate, the Amazon rainforest may completely "lose" the carbon sink function within 15 years.
For the carbon sink function may be some strangers, it is the use of plant photosynthesis to absorb carbon dioxide in the atmosphere, and fix it in the soil, vegetation, in order to reduce the concentration of greenhouse gases in the atmosphere of the process, if the Amazon rainforest "loses" the carbon sink function, it is very unfavorable for global climate change, and this will bring about "sandstorms, drought, global warming" and many other serious chain reactions.
<h1 class="pgc-h-arrow-right" data-track="10" > so how can we further improve the environment and stop global warming? </h1>
In fact, what we can do at present, in addition to reducing the use of oil, coal and other energy sources, is more to plant more trees and further expand the forest area, and on this point China is fully implemented, of which the well-known "ant forest" is one of the representatives.
Of course, it is obviously not enough to increase the area of the forest, we should increase the forest area while protecting the existing forest, in case the Amazon rainforest is again like this!
So finally, for the current changes in the global environment, what are your opinions, welcome to explore more in the comment area, if you want to know more about science, science and technology related knowledge, like forward attention, next time by 009 take you to see!