Although “El Niño comes and goes," as one climate scientist said of the naturally occurring warm-weather phenomenon on Monday, experts are in agreement that this year is different—with meteorologists already recording a temperature rise of 3.07°C in the Pacific Ocean, putting it at a statistical tie with November 2015, when El Niño caused the ocean to warm by 3.08°C.

The temperature rise is not expected to peak until November and December, when an average of 14 models examined by Zeke Hausfather of Carbon Brief and Berkeley Earth found that a temperature rise of 4.1°C is forecast.

The event has been underway since June, Hausfather wrote, and has been gathering strength “faster than any previous event on record.”

Scientists typically track the strength of El Niño—which leads to heavy rainfall, higher global temperatures, and other extreme weather as warmer Pacific waters are pushed to the south—using the Niño 3.4 anomaly, or ONI, which determines how much hotter the central Pacific is compared with a 30-year rolling average.

A temperature rise above 2.0°C is considered a “very strong” El Niño, and scientists and policymakers are already calling this year’s event a “super El Niño,” with some experts using the terms “Godzilla-level” and “jaw-dropping” to describe the weather conditions that can be expected in the coming months due to the warmer climate.

As Common Dreams reported late last month, planetary heating driven by fossil fuel emissions is intensifying El Niño, while the naturally occurring phenomenon can in turn worsen the impacts of the climate emergency.

In the last 40 years scientists have recorded a 16% increase in the strength of El Niño events, according to a study published in Science last month. They’ve also gotten 36% stronger than they were before industrialization began.

The “double whammy,” as The Guardian called it, could make 2027 the hottest year ever recorded, blowing through heat records that have just been set this year—and that have been linked to the deaths of people around the world from extreme heat and flooding.

“This event is a huge redistribution of energy in the climate system and is dangerous because it is unfolding on top of a much warmer, human-influenced climate system," climate scientist Friederike Otto of Imperial College London told The Guardian. “So, in many places around the world we will see never-before-experienced heat extremes, with all their consequences on health, food security, and water stress."

Despite the fact that El Niño predates the human-caused climate emergency, Otto said, "as long as we continue to burn fossil fuels, it occurs on an increasingly hotter baseline, making it much more difficult for communities to deal with the consequences.”

This year’s event is likely to be the most intense El Niño in 1,000 years, reported to The Guardian, with hotter and drier conditions already linked to deadly wildfires in Indonesia and crop losses in Central America and the Caribbean region due to drought conditions. Rice production this season is expected to fail in Indonesia, according to the Salata Institute for Climate and Sustainability at Harvard University.

As the Southern Hemisphere’s summer months approach, southern Africa and Australia are at heightened risk of wildfires and droughts as well. Meanwhile, cocoa production could be damaged by extreme rainfall in parts of South America.

“All strong El Niño events on record have continued to strengthen well into the winter—and the models are in near-unanimous agreement that this one will, too,” wrote Hausfather at Carbon Brief. “If the forecast holds, the current event will peak between November and January at a level far beyond any event previously observed in the instrumental record.”

In California on Monday, Democratic Gov. Gavin Newsom declared a state of emergency in an effort to prepare communities for El Niño’s impacts in the coming months, which could include coastal flooding and heavy snow in mountain regions.

Hausfather noted that strong El Niño events like those that occurred in 1997 and 2015 were also “associated with hundreds of billions of dollars in damages globally.”

“This event,” he told The Guardian, “is leaving those past ones in the dust.”

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