GHG emissions: rates to reach unprecedented highs in 2024, with largest one-year increase (WMO bulletin)
"The levels of the three most abundant long-lived greenhouse gases, CO2 (carbon dioxide), CH4 (methane), and N2O (nitrous oxide), reached new records in 2024. From 2023 to 2024, CO2 in the global surface atmosphere increased by 3.5 ppm (parts per million), the largest one-year increase since modern measurements began in 1957. This increase was...