Geneva, The World Meteorological Organization (WMO) has confirmed that atmospheric carbon dioxide (CO₂) levels rose by a record 3.5 parts per million (ppm) in 2024 the largest annual increase since measurements began in 1957.
According to the WMO’s latest Greenhouse Gas Bulletin, average CO₂ concentrations reached 423.9 ppm in 2024, up from 377.1 ppm in 2004. This surge was driven by continued fossil fuel emissions, intensified wildfires, and a weakened ability of natural carbon sinks—such as forests and oceans—to absorb CO₂. Scientists warn that this trend could trigger a self-reinforcing climate feedback loop.
The report also highlighted record levels of other potent greenhouse gases: methane rose to 1,942 parts per billion (ppb), 166% above pre-industrial levels, while nitrous oxide reached 338 ppb, a 25% increase. WMO Deputy Secretary-General Ko Barrett stated, “The heat trapped by CO₂ and other greenhouse gases is turbo-charging our climate and leading to more extreme weather.”
The findings come ahead of the COP30 climate summit in Belém, Brazil, where global leaders are expected to address the urgent need for emissions reductions and enhanced climate monitoring.
Environment Correspondent, TWW News
Diya is a journalist at TWW News specializing in environmental reporting with a global lens. Her work spans climate policy, conservation breakthroughs, and the intersection of ecological justice and geopolitics. With a sharp eye for data and a commitment to public accountability, Diya covers stories that matter—from rising sea levels to green tech innovation—with clarity, urgency, and impact.
She brings a background in environmental science and field reporting, often spotlighting underrepresented communities and frontline climate defenders. At TWW News, Diya’s coverage is engineered for credibility, legal rigor, and Global grade editorial standards, helping readers navigate the complexities of a changing planet.