El Niño is forming in the tropical Pacific Ocean, which will lead to more extreme weather

The World Meteorological Organization predicted in its latest bulletin that the possibility of the El Niño phenomenon continuing in the second half of 2023 has reached 90%, and the intensity of the El Niño phenomenon is expected to be “at least moderate”. Combined results from ocean and atmospheric observations show that for the first time in seven years, El Niño conditions have emerged in the tropical Pacific Ocean, which could trigger global temperature spikes and extreme weather, and governments should prepare for related climate events.

On July 5, 2023 local time, in Daegu, South Korea, a high temperature warning was issued locally, and people passed by the “burning the earth” device.

early warning

On the 8th of last month, the National Oceanic and Atmospheric Administration of the United States issued an alert saying that the El Niño phenomenon has appeared and is expected to last until winter, and may develop into a moderate El Niño phenomenon or a strong El Niño phenomenon. World Meteorological Organization Secretary-General Petteri Taalas said the appearance of El Niño would greatly increase the chances of breaking temperature records, “triggering more extreme heat in many regions and oceans around the world”. “Early warning and early action on extreme weather events associated with this major climate phenomenon saves lives and livelihoods,” he stressed.

On June 6, 2023 local time, in Pasaquina, El Salvador, the dry weather has dried up crops, and the El Niño weather has threatened food security.

frequent extreme weather

El Niño occurs on average every two to seven years and usually lasts 9 to 12 months. This is a naturally occurring climate pattern associated with warming sea surface temperatures in the central and eastern tropical Pacific Ocean, but climate change caused by human activities also contributes to its occurrence.

On June 25, 2023 local time, in London, England, rising temperatures have caused duckweed to surge on London waterways.

El Niño typically causes increased rainfall in southern South America, the southern United States, the Horn of Africa and parts of Central Asia; conversely, Australia, Indonesia, parts of South Asia, Central America and northern South America experience severe drought. In the northern hemisphere summer, the warm water brought by the El Niño phenomenon can intensify hurricanes in the central and eastern Pacific Ocean, while at the same time it may hinder the formation of hurricanes in the Atlantic basin.

This year’s El Nino phenomenon is more complicated. From the summer of 2020 to the early spring of 2023, the La Niña phenomenon has lasted for nearly 3 years. The La Niña phenomenon is the opposite of the El Niño phenomenon, which is an abnormal decrease in water temperature in the central and eastern equatorial Pacific Ocean. Some meteorological experts pointed out that extreme weather events such as heavy rains are prone to occur during the transition from La Niña to El Niño.

On June 28, 2023 local time, in Kansas City, Missouri, the United States, a child was cooling down in the spray to relieve heat. The outdoor temperature at that time was close to 40 degrees Celsius.

On June 30, 2023 local time, the drought continued in Sudan, and there were cows dying of lack of water on the ground.

set off a chain reaction

Since El Niño’s impact on global temperatures typically manifests itself in its second year of existence, 2024 is likely to be most pronounced. WHO pointed out that the El Niño phenomenon may have a serious impact on human health factors, including food security, air and water quality, ecosystem and health infrastructure security, and people may suffer from transmitted diseases due to these factors.

build up emergency reserves

WHO also highlighted that many of the countries most likely to bear the brunt already have ongoing crises, such as in the Sahel (Mali), the Horn of Africa (Somalia, Ethiopia), Pakistan and Myanmar. The occurrence of El Niño “is a signal to governments around the world” to mobilize countries to prepare in advance to curb the impact of El Niño on health, ecosystems and economies.

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