El Niño in a thermally saturated world

El Niño events are intensifying due to human-caused climate change, according to research published in Nature on June 16, 2026. The study indicates that the "thermally saturated" state of the world's oceans, a consequence of absorbing excess heat from greenhouse gas emissions, is amplifying the effects of El Niño. This amplification means that the warming of the eastern tropical Pacific Ocean, a hallmark of El Niño, is becoming more pronounced. Consequently, the associated global weather pattern disruptions, such as increased rainfall in some regions and severe droughts in others, are also expected to become more extreme. The research highlights that even moderate El Niño events in a warming climate can trigger significant and widespread climate anomalies. This phenomenon poses substantial risks to ecosystems, agriculture, and human societies worldwide, necessitating urgent adaptation and mitigation strategies. The findings underscore the interconnectedness of global warming and natural climate variability, suggesting that future climate projections must account for these amplified oceanic influences.