State of the Climate 2024

Current Context : WMO has published the State of Climate 2024 Update for COP29 on the backdrop of the U.N. climate summit at Baku.

• Temperature Increase: From January to September 2024, the global average temperature was 1.54°C above pre-industrial levels, indicating a significant warming trend.
• Greenhouse Gas Rise: CO₂ levels in the atmosphere reached 420 ppm in 2023, marking a 51% increase since 1750.
• Sea Level Rise: Between 2014 and 2023, global sea levels rose at 4.77 mm per year, more than twice the rate observed from 1993 to 2002.
• Antarctic Sea Ice: Antarctic sea ice extent in 2024 was the second-lowest on record, with 2023 being the lowest since satellite records began in 1979.