The Influence of La Nina Phenomenon on the World

As early as last September, the World Meteorological Organization predicted that all parts of the world would encounter a series of extreme weather due to the increasing influence of La Nina phenomenon. Even so, the strange weather that followed made people unprepared, and the figure of "La Nina" frequently appeared all over the world.

In Africa, 22 countries experienced continuous heavy rainfall from July to September last year, resulting in floods that killed about 300 people and affected more than 654.38 million people.

In the Middle East, many countries suffer from extremely cold weather rarely seen in history. The first snow in 100 years came in the war-torn Iraqi capital Baghdad. Parts of Saudi Arabia were also hit by a snowstorm in June+10, 5438, and the temperature dropped below zero degrees Celsius, reaching the lowest temperature in 20 years.

In North America, extreme weather continued throughout the United States, causing huge losses. From the end of last year to June 5438+ 10 this year, a snowstorm hit the United States, causing snowstorms, heavy rains and floods, and many expressway were closed. In February, the southern United States was hit by a tornado again. It is estimated that there will be 30 to 40 tornadoes from May 5th to 7th, which is the worst tornado disaster in the United States in 23 years.

The Australian city of Perth was hit by heavy rain. On the night of the 7th, 23mm rainfall was recorded, which is equivalent to twice the local average rainfall in February every year.

Extreme weather around the world has aroused the concern of experts. The International Strategy for Disaster Reduction, a United Nations disaster relief agency, believes that more and more abnormal weather will become a "normal" phenomenon due to its frequent occurrence. "The so-called' strange weather' is becoming more and more common," said Salvato Le Briceno, director of the agency.