El calor global rompe récords: el promedio ya supera el umbral de 1,5 °C
Durante la última ola de calor en Europa murieron 2.300 personas, de las cuales 1.500 muertes fueron atribuidas al cambio climático. Foto: iStock
TL;DR
- 2025 was the third warmest year on record, with global average temperatures exceeding 1.5°C above pre-industrial levels for the first time in a three-year period (2023-2025).
- The global average temperature in 2025 was 14.97°C, 0.59°C above the 1991-2020 average.
- Europe also experienced its third warmest year in 2025.
- The continued warming is driven by greenhouse gas accumulation and exceptionally high sea surface temperatures, linked to El Niño and other oceanic variability factors, worsened by climate change.
- The 1.5°C warming limit could be reached by the end of this decade, earlier than projected.
- Record high annual temperatures were observed in the Antarctic and Arctic in 2025.
- Half the world's land surface experienced more days of severe heat stress in 2025.
- High temperatures contributed to wildfires, releasing toxic atmospheric pollutants in regions like Europe and North America.
- 2026 is expected to be among the five warmest years, with the possibility of another El Niño event.