2023 WMO report: Greenhouse gas concentrations reach record high, CO2 at 420 ppm, surpassing Paris Agreement climate goals.

The World Meteorological Organization (WMO) reported in March 2023 that greenhouse gas concentrations, including carbon dioxide (CO2), methane, and nitrous oxide, reached unprecedented levels. CO2 levels rose to 420 parts per million, marking a 10% increase over two decades. This surge, driven by vegetation fires and high fossil fuel emissions, jeopardizes efforts to meet the Paris Agreement's climate goals, locking in future temperature increases for decades.

October 28, 2024
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