Why is North America heading for a severe drought?

Many people didn't believe that the earth's climate would change before, but now they all say that it is normal to change. Has our earth changed? In fact, it is obvious that the change of the earth's ecosystem is an obvious fact. With the intensification of global warming, climate problem is also a worldwide problem, and climate phenomena such as high temperature and drought are also common. According to Science magazine, some parts of North America are heading for severe drought, which can be said to be bad news.

Why is North America heading for a severe drought?

With the change of climate, the climate crisis can be said to have no obvious change. According to the warning of scientists, in fact, in the near future, parts of the United States and Mexico may encounter a "great drought."

And this is well-founded support. By analyzing the precipitation since the beginning of this century and their matching with the soil moisture level recorded by tree rings in the past 65,438+0,200 years, scientists have made a future model. It shows that the southwestern part of the northwestern United States (SWNA) may suffer from more severe drought than at any time, so rainfall will become a possible concern in North America in the future.

Moreover, scientists have found that since 2000, the simulation results are consistent with the actual climate change. Although the precipitation of 20 19 has indeed eased, the drought may have begun, so this will not change the whole drought pattern. According to the climatologist Park Williams, we now have enough observation data for the annual ring records of the current drought and the past drought, so we can say that we are in the same orbit as the worst drought in prehistoric times.

Is there really no way to alleviate this?

Of course, in order to alleviate this climate state, we must first know why it happened or became so serious. For the earlier dry weather, it is basically due to natural factors. Now it is not natural factors, but human factors that account for a large part. With the intensification of human activities, the temperature of the earth has also increased significantly. We can clearly see that the emission of greenhouse gases has intensified, resulting in the annual average temperature reaching the second highest temperature period in history in 20 19.

Therefore, the influence of human beings is much stronger than that of nature, and for North America, the current drought affects a wider area and has a more lasting impact. The rising temperature may offset the natural variation of precipitation in the past few centuries, thus making the drought longer, drier and wider. Signs of this shift are everywhere, not just in North America. In other words, climate is a global influence, and it is possible to alleviate climate change unless human beings have ways to change greenhouse gas emissions.

What will the climate be like in 2020?

For the earth, the severity of the climate may be the most obvious, and scientists have made it very clear. Of course, although it is said that it is a drought development trend in North America, it is the same for other parts of the world. After all, our earth is a whole, and the interaction of ecosystems is inevitable. According to the report of the World Meteorological Organization, in 2020, there will be unusually high temperatures in many parts of the world, which also indicates that water will be a big problem, so climate change has not met the ideal requirements of human beings.

And in the first three months of this year, we didn't see the temperature drop, but it rose. The earth is getting hotter and hotter. How can the earth's climate remain the same? It's obviously getting worse.

Finally, explain China's climate problem may be relatively severe this year. According to the forecast, this year's major floods, regional floods, typhoons and other problems may be strong, and everyone must make preparations in advance to avoid these effects.