Methane emissions from Siberia have nearly doubled between 2010 and 2023, driven by rising global temperatures, according to a study published in Science. The research was conducted by scientists from the University of Edinburgh in Scotland and the Chinese Academy of Sciences. They analyzed long-term measurements of atmospheric methane collected by the Japanese satellite Gosat and some ground-based monitoring stations. This increase suggests that Siberia is now responsible for about 10 percent of global methane emissions from wetlands, which are a major source of this potent greenhouse gas.
The study highlights that methane emissions from Siberia are linked to two different processes. One is the thawing of permafrost, which releases methane trapped in the frozen soil. The other is the increased activity of wetlands, such as lakes and marshes, which naturally produce methane as part of their ecosystem. These findings provide a clearer understanding of how climate change is accelerating methane release in one of the world's most remote and ecologically significant regions.
Paul Palmer, one of the study's authors and a researcher at the National Centre for Earth Observation in Edinburgh, emphasized the significance of the findings. "Our study shows for the first time that they come from two distinct phenomena," he said. This distinction is important because it helps scientists better model and predict future methane emissions, which are a key factor in global warming.
The research underscores the urgent need to monitor and understand methane sources in regions like Siberia, where climate change is occurring at a faster rate than in many other parts of the world. As global temperatures continue to rise, the release of methane from these sources could further accelerate climate change, creating a feedback loop that makes the problem even more challenging to address.
Siberian Methane Emissions Nearly Double Since 2010, Study Finds
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