Record Fossil Fuel Emissions in 2025 Contribute to Second-Hottest Year on Record
In 2025, global temperatures have continued to rise, making it the second-hottest year on record, following 2024. This increase in temperature is occurring despite the transition from the El Niño phase, which typically warms the planet, to the La Niña phase, which usually cools it. The European Union’s Copernicus Climate Change Service reports that the mean temperature for 2025 is 1.48°C above the preindustrial average. This warming trend is largely attributed to record levels of fossil fuel emissions, which have exacerbated extreme weather events worldwide. Notable incidents include a deadly heatwave in Europe, Hurricane Melissa in Jamaica, and severe storms in Southeast Asia. The report also highlights the alarming reduction in Arctic and Antarctic sea ice.