UN Secretary-General Antonio Guterres issued an urgent climate warning on Tuesday, June 2, 2024, regarding the imminent development of El Niño [1].
The warning is critical because the weather pattern is expected to trigger severe global disruptions, including heightened risks of floods, droughts, and heatwaves [1], [2].
In a video released from UN headquarters in Geneva, Guterres said governments and communities should prepare for the extreme weather impacts that the event could trigger [1], [3]. The Secretary-General said the world must ready itself for the volatility associated with this climate phenomenon to mitigate potential humanitarian crises [2], [4].
Data regarding the probability of the event varies slightly across reports. One source indicates there is a 90 percent [1] chance of El Niño developing in the coming months, while another reports the likelihood at 80 percent [4]. Despite the range, both figures signal a high-probability event that demands immediate international attention.
El Niño typically involves the warming of surface waters in the eastern Pacific Ocean, which alters atmospheric circulation and shifts rainfall patterns globally. This often leads to devastating droughts in some regions and catastrophic flooding in others, a cycle that can destabilize food security and public health infrastructure [2], [3].
Guterres said the urgency of the situation requires a coordinated global response to protect vulnerable populations. He said proactive measures are needed to ensure that nations are not caught unprepared by the resulting weather extremes [1], [4].
“UN Secretary-General Antonio Guterres issued an urgent climate warning regarding the imminent development of El Niño.”
The high probability of an El Niño event, coinciding with long-term global warming trends, suggests a compounding effect on extreme weather. For governments, this means that traditional disaster response may be insufficient, necessitating a shift toward preemptive climate adaptation and reinforced infrastructure to prevent widespread economic and human loss.





