UN and Experts Warn of Historic Super El Niño Impacts Through 2027

The World Meteorological Organization has confirmed that the current El Niño event will be extremely strong, potentially becoming the most powerful episode recorded since monitoring began four decades ago. The phenomenon is expected to reach its peak by the end of this year, with climatic repercussions continuing at least until February 2027. The UN warns that this event will cause significant impacts on temperature and precipitation patterns, increasing the risks of floods, droughts, and extreme heat. UN Secretary General Antonio Guterres stated that global temperatures are on track to exceed the 1.5 degree Celsius limit set by the 2015 Paris Agreement, noting that extreme heatwaves, wildfires, and floods serve as warnings of future risks.

Regional impacts are expected to be diverse rather than uniform. In Argentina, the phenomenon has already caused instability, rain, and snow in Patagonia, with a probability higher than 90 percent that the event will evolve into a very strong intensity in the Buenos Aires province. Similarly, Aon reports that the impact on the Brazilian 2026/27 harvest should be viewed as a scenario of diverse risks that vary by region rather than a homogeneous national event.

Outlets with a center-left lean focused on the specific economic risks to the agricultural sector and the unequal distribution of climate risk. In contrast, outlets with a center-right lean framed the event as a historic global and national crisis, emphasizing the warnings from the UN and the immediate meteorological instability in Argentina.