UN Weather Agency: Greenhouse Gas Concentrations Hit New Records in 2025
Photo: CBS NewsAtmospheric concentrations of the three main greenhouse gases, carbon dioxide, methane and nitrous oxide, all reached record highs in 2025, the World Meteorological Organization (WMO), the U.N. weather and climate agency, said in Geneva on Tuesday. In its 22nd annual Greenhouse Gas Bulletin, the WMO put carbon dioxide at 426.8 parts per million, methane at 1,948 parts per billion and nitrous oxide at 339.1 parts per billion. The CO2 level is 153 per cent of the pre-industrial baseline. The agency said the rise will lead to further long-term temperature increases. WMO Deputy Secretary-General Ko Barrett said it was "another year, another new record," and that the gases trap unprecedented heat, fueling more extreme weather and risks to economies and societies. She said the past 11 years were the warmest on record and that CO2's long lifetime means it will affect the climate for decades and even centuries. The bulletin measures concentrations in the atmosphere, not new annual emissions. It comes ahead of the COP31 U.N. climate summit in Antalya, Turkey, from Nov. 9 to Nov. 20.
The right-leaning Daily Mail leads with "emissions" at an all-time high and says CO2 growth rates have tripled since 1960, rising from 0.8 ppm per year to 2.4 ppm per year. It contrasts this with country commitments to green policies and Net Zero targets, saying the data shows a starkly different picture, with emissions growing even as renewable projects expand. Its headline adds that scientists call for urgent action. The left-leaning CBS News leads with the U.N. announcement, its lasting climate impacts and the upcoming COP31 summit. It notes the bulletin measures concentrations rather than annual emissions and gives all three gas figures. Both outlets use Barrett's quote and the 426.8 ppm figure. The Daily Mail frames the story around policy shortfalls and growth rates; CBS stresses the U.N. warning, the warmest-years record and the summit. The South China Morning Post's excerpt largely repeats the basic U.N. findings.
How the sides differ Right sources stress the gap between net-zero pledges and rising emissions; left sources tie the record to extreme weather and the COP31 summit; alternative sources run only a brief wire-style account.
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CBS News leads with the U.N. report on record gas levels, quoting WMO's Ko Barrett and giving all three gas figures, and places the findings ahead of the COP31 summit in Turkey.
The South China Morning Post gives a brief account of the U.N. weather agency's finding that all three main gases hit record levels in 2025 and will raise temperatures long term.
The Daily Mail leads with emissions at an all-time high and tripled CO2 growth rates since 1960, quotes Ko Barrett, and contrasts the rise with green policy and Net Zero commitments.