The return of El Niño poses risks to marine ecosystems, including fish populations and coral reefs, due to rising ocean temperatures. Additionally, the phenomenon is known to disrupt global weather patterns, potentially leading to extreme weather events such as droughts, floods, and heatwaves in various regions. The intensification of El Niño through late 2026 could amplify these impacts, affecting both natural ecosystems and human communities worldwide. Stakeholders in fisheries, agriculture, and disaster management should remain vigilant as conditions evolve.