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UN warns that a strong El Nino may push global temperatures up

Tuesday, the United Nations weather agency forecasted a "moderate" or even "strong" El Nino which could increase global temperatures and the risk of extremes in the months to come. According to the World Meteorological Organization, El Nino is the periodic warming of the sea surface temperature in the eastern and central Pacific Ocean. It typically lasts nine to twelve months. WMO predicted that warm ocean water was fueling El Nino and predicted temperatures above average in most areas of the globe from June to August. El Nino is expected to continue through November, according to the WMO.

Celeste Saulo, WMO Secretary-General said: "We must prepare for an El Nino event that could be strong. This will increase droughts and heavy rains and the risk of heatwaves on land and at sea."

Saulo? added that the most recent El Nino in 2023-24 contributed to making 2024 the hottest year ever recorded. The WMO reported that a shift was observed in the Equatorial Pacific, where sea surface temperatures rose rapidly from mid-April to late April, indicating the development of El Nino. The WMO said that it had observed subsurface temperatures in the tropical Pacific exceeding 6 degrees Celsius. This created a reservoir of warmth which is driving surface warming. This weather pattern can disrupt regional climates. It could bring increased rainfall in southern South America, southern United States, some parts of the Horn of Africa, and central Asia. However, it may also cause droughts in Australia, Central America, Indonesia, and southern Asia. The WMO also said that it can have an effect on global climate and cause hurricanes to form in the eastern and central?Pacific Ocean.

"The world should treat this as an urgent climate warning. El Nino conditions are fueling the fires of global warming, said U.N. Secretary General?Antonio Guterres. He urged a switch from fossil fuels to renewable energy.

According to the WMO, there is no evidence that climate changes increase the frequency or intensity El Nino events. However, they can worsen associated impacts like extreme heatwaves and excessive rainfall. Reporting by Olivia Le Poidevin, Editing by Nis Williams

(source: Reuters)