Key Points

• ENSO variability and a warming background state are the main drivers discussed across the material.
• Multiple sources point to near-record ocean warmth and conditions that could support a stronger El Niño phase later in 2026.
• The likely impacts are higher risk of heatwaves, altered rainfall, and more disruptive storm activity across North America and parts of Europe and the Pacific.
• Monitoring systems such as satellites, Argo floats, buoys, and global forecast centers are treated as central to early warning.
• Attribution language increasingly links unusual heat and record warmth to human-caused climate change rather than natural variability alone.
• Adaptation themes recur strongly, especially resilient infrastructure, water management, disaster planning, and cross-border preparedness.
• The topic is coherent and fairly stable, but some uncertainty remains around timing, strength, and regional expression of the next ENSO phase.