2025 confirmed as the third hottest year on record

Scientists confirm 2025 was the third warmest year on record, with the HadCRUT5 dataset at about 1.41°C above pre‑industrial levels and Copernicus reporting around 1.47°C.

Scientists have confirmed that 2025 was the third warmest year on record. Multiple global datasets compiled by the Met Office, the University of East Anglia and the National Centre for Atmospheric Science, alongside Copernicus monitoring, place 2025 roughly 1.4°C–1.5°C above pre‑industrial levels. Researchers noted that the El Niño influence that boosted temperatures in prior years weakened in 2025, making the underlying human-driven warming clearer. Key findings: - The HadCRUT5 dataset shows 2025 at about 1.41°C above 1850–1900 and ranks it behind 2024 and 2023. - Copernicus ERA5 analysis reports roughly 1.47°C above pre‑industrial levels and notes the past 11 years are the warmest on record. - Scientists stated that year-to-year swings include natural variations such as El Niño, but that the long-term increase in global temperature is driven by higher greenhouse gas concentrations linked to human activity. Summary: The published analyses indicate continued long-term warming and place recent years close to the 1.5°C benchmark referenced in the Paris Agreement. Researchers reported a reduced El Niño influence in 2025, which highlights the human-driven temperature rise. Undetermined at this time.