In the movie The Day After Tomorrow, the wind tunnel comes. Why does the temperature suddenly drop?

Will "The Day After Tomorrow" really come?

-Interview with Li Zhanqing, a professor of meteorology at the University of Maryland.

The greenhouse effect caused the Arctic to melt and the earth entered the ice age. New york, a symbol of highly modern civilization, instantly turned into an ice city, and people froze to death in the snow ... Is this scene in the American film The Day After Tomorrow, which was recently shown, the future result of the greenhouse effect? Recently, the reporter interviewed Dr. Li Zhanqing, a professor from the Department of Meteorology of the University of Maryland in the United States, who came to attend the "Forum on Meteorology and Sustainable Development" of the Guangdong Meteorological Bureau on the global climate change under the influence of the greenhouse effect and Guangdong's climate environment. With the current global temperature rising, will the disaster shown in the film become a reality?

"No one knows!" (Nobody knows) Li Zhanqing said that no one can be sure what kind of catastrophic climate will happen, and it is inappropriate to treat the assertion that the greenhouse effect leads to catastrophic climate with absolute thinking. Li Zhanqing mainly studies global change and environmental remote sensing, and is funded by NASA to study the environment and climate change in China.

He said: "On the premise that there are very few available meteorological data, the current meteorological forecasting model is far from being able to predict the weather conditions in the next few hundred years, decades or even months. The day after tomorrow can only be said to be some scientists, not even scientists, but an artistic description of a visionary on the basis of limited modern scientific knowledge. "

However, Li Zhanqing also said that the plot of this film is not completely groundless. At present, some observation data can really prove that human factors have a significant impact on climate. He said that the climate warming in high latitudes and polar regions is much more obvious than that in low latitudes. An obvious manifestation of temperature change in high latitudes is the thinning of sea ice. In the 1990s, the United States actually observed the ice thickness in the Arctic with an icebreaker, and found that the ice layer was indeed thinner than the previous data record.

Arctic ice turns into water, diluting seawater, which will affect the heat cycle in high latitude and low latitude areas. Therefore, it is getting colder at high latitudes and hotter at low latitudes. The earth will have to rely on atmospheric fluctuations to maintain its balance. This will mean that storms, a kind of disastrous weather, will occur more frequently.

International mainstream scientists agree that temperature changes in high latitudes will lead to the melting of Arctic glaciers.

The temperature continues to rise, and the consequences of melting snow and ice are serious. Li Zhanqing said that if the area covered by snow and ice is reduced, the sunlight that can be reflected will be reduced, and the ground will absorb more solar energy, which will lead to an increase in temperature. The higher the temperature, the more snow will melt. According to this cycle, the climate will deteriorate rapidly.

Li Zhanqing said that the current global climate is being destroyed and the future is not optimistic. "This catastrophic climate is possible, at least I dare not say it is impossible." .

However, he also said that climate change is a very complicated process and many factors will play a role. Whether the greenhouse effect will eventually lead to the climate disaster the day after tomorrow is still unknown.

In the past century, the climate in Guangdong has changed significantly, and the greenhouse effect has become more and more obvious. Is this related to the industrialization process in Guangdong? Li Zhanqing suggested that the National Meteorological Administration and the Guangdong Meteorological Administration could conduct scientific experiments, analyze various actual observation data and verify the impact of industrialization on climate. "Guangdong has a long record of actual meteorological observation, and the meteorological cause has developed early and rapidly. It can be used as a mirror for other provinces and regions in China, and can also be compared with places with similar climatic conditions such as Guangxi. Through a series of scientific research, the preliminary conclusion of energy exchange mode in industrialized areas of China is drawn. "

References:

. com/news/GD news/gdtodayimportant/200407050 12 1 . htm