Scientists warn strengthening El Niño could boost global temperatures after mild summer

Wildfires are raging across parts of North America and Europe as unprecedented heat waves grip major cities, while ocean surface temperatures have reached record highs for this time of year. Meteorological agencies report that the combination of extreme terrestrial and marine heat is contributing to rapidly expanding fire fronts in the western United States, Canada, and several Mediterranean nations, prompting evacuations and straining emergency response resources.

Scientists warn that a strengthening El Niño pattern is projected to intensify these conditions, with forecasts indicating sea‑surface temperature anomalies far above typical values. The amplified El Niño is expected to elevate global average temperatures, disrupt precipitation patterns, and increase the frequency of extreme weather events worldwide, further complicating efforts to manage the ongoing wildfires and heat‑related health risks.