March 2026 marked a significant milestone in climate records, being the fourth-warmest March globally at 1.48°C above pre-industrial levels, according to the Copernicus Climate Change Service (C3S). This month also witnessed the second-highest sea surface temperatures (SST) recorded at 20.97°C, suggesting an impending El Niño event by July. The U.S. National Oceanic and Atmospheric Administration (NOAA) reported that March temperatures were 1.31°C above the 20th-century average, tying with 2024 as the second-warmest March on record. Europe faced its second-warmest March, following a notably cold February, while the Arctic experienced its lowest sea ice extent for March, averaging 5.7% below normal. Carlo Buontempo, director of C3S, emphasized the urgency of reliable climate data for effective adaptation and policy responses. The NOAA predicts a 61% chance of El Niño conditions developing from May to July, which could exacerbate global warming effects and increase the frequency of heatwaves.