Human activity helped make 2025 third-hottest year on record, experts say
2025 averaged about 1.48°C above preindustrial levels, continuing extraordinary global heat driven largely by fossil fuel emissions and escalating breach of the 1.5°C limit.
Removing CO2 from atmosphere vital to avoid catastrophic tipping points, leading scientist says
Ten billion tonnes of CO2 must be removed annually to limit warming to 1.7°C, requiring large direct-air-capture infrastructure and about $1 trillion per year.