What I don't understand is why the climate is getting hotter and hotter now, which is really abnormal.

At the beginning of 2000, many unusual changes took place in the global climate. First, there was severe snow and ice in southern China, and then it was rare for Britain and France to cool down in early spring. Tracing back to the source, the cause of all this should start from La Nina phenomenon.

La Nina-which means "little girl, saint" in Spanish, refers to a phenomenon that the water temperature in the eastern Pacific Ocean near the equator drops abnormally, which is manifested by the obvious cooling of the eastern Pacific Ocean and the global climate chaos.

La Nina always occurs after El Nino, which is related to the strengthening of trade winds east of the equator. Driven by the trade winds, the equatorial ocean current flows from the eastern Pacific to the western Pacific, which significantly increases the velocity of seawater in the western Pacific and pushes the warm water on the surface of seawater to the Asian continent, resulting in abnormally low seawater in the central and eastern Pacific. If El Ni? o usually leads to climate warming, La Ni? a will lead to more heavy rainfall, such as the torrential rains in Indonesia, Malaysia, Australia and Africa last year. Of course, it also caused drought in South America, tropical Atlantic hurricane and rare cold current in North America.

Earlier this year, climate change experts warned that the general trend of global warming may face several turning points. World Meteorological Organization Michelle? In an interview with the British BBC, it was clearly announced that the global climate would get cold in 2008. These predictions were confirmed not long ago.

A few days ago, French female scientist Claude? Alegre wrote in Viewpoint that the decrease of global average temperature at the end of the year is inseparable from climate change. She insists that the cooling situation under the general trend of global warming is precisely because of the continuous ravages of La Nina phenomenon since last summer.

Last summer, La Nina began to appear, with frequent attacks from June to July. This directly caused the catastrophic floods in Africa this autumn, the catastrophic rainfall in Australia and the catastrophic ice and snow disaster in southern China.

Jean-Pierre from the French Meteorological Agency? Dr. Theron believes that La Nina phenomenon is not harmful to Europe, because La Nina phenomenon originated in the western Pacific Ocean, and its intensity has been greatly weakened after reaching Europe through Canada and the Caribbean. Obviously, due to the geographical location, the impact of La Nina phenomenon on mid-latitude countries is limited. Of course, La Nina has no influence on Europe, which is closely related to the mild but rainy abnormal winter phenomenon in most parts of Britain last year.

President of the World Meteorological Service and Inspection Bureau Ruba? Kumar? Kerry stressed that it is not accurate to blame all the above abnormal climate phenomena on La Nina. A more rigorous explanation should be that they are all caused by the abnormal persistence of La Nina phenomenon. La Nina phenomenon began to appear at the beginning of last summer and has lasted for more than nine months. Many scientists predict that the duration of La Nina phenomenon may be longer than any previous one, even as long as 12 months.

At present, people are most concerned about how long this La Nina phenomenon will last. As we all know, it is almost impossible for this abnormal climate phenomenon to last for more than a year or two. According to the prediction of experts from the World Meteorological Organization, optimistically speaking, as in 2000-2000, this phenomenon will begin to weaken with the passage of time, and La Nina will gradually die out during the year.

In any case, this La Nina phenomenon is one of the most serious climate disasters that mankind has ever experienced. Compared with normal seasons, the surface seawater temperature in the East Pacific Ocean is generally 65438 0.5℃-2℃ lower.

Another question people are concerned about is, will such abnormal climate change bring about global warming or global cooling? World Meteorological Organization Michelle? The family also answered this question. It is not credible to say that this La Nina phenomenon will lead to global climate cooling just because of the short-term temperature drop. In fact, this La Nina phenomenon will never lead to the reversal of global warming. In the annual climate change observation, this period of time is only a short period of time. You know, it is not enough to study global climate change by just observing the data for one year. To get scientific and credible results, you must be followed up for a long time, at least five years.

In addition, the seasonal climate forecast of the French Meteorological Agency points out that the temperature in Europe this spring will be significantly higher than in previous years, especially in April, May and June. The Hadley Center in Britain recently released a report on global climate change in the past five years, but the topic is related to the El Ni? o phenomenon.

In the face of complex climate problems, human beings still lack effective monitoring means and preventive measures, but I believe that with the continuous progress of science and technology, El Ni? o and La Ni? a will no longer be obstacles to normal production and life.