Siberian permafrost methane emissions double, risking a blind spot in climate research

Methane emissions originating from the Siberian permafrost have nearly doubled over the last decade, a significant development that exacerbates climate change. This alarming trend, detailed in a recent publication in the journal Science, highlights the accelerating feedback loop where thawing permafrost releases potent greenhouse gases, further warming the planet.

Permafrost, defined as ground that remains frozen year-round, contains vast amounts of trapped plant material. As this ground thaws due to rising global temperatures, bacteria decompose the organic matter, releasing methane. The study indicates that western Siberia is experiencing warmer and wetter conditions, ideal for methane-producing bacteria, while eastern Siberia faces increased heatwaves and wildfires, which also contribute to methane release. Although Siberian methane emissions constitute only about 5% of global emissions, the rapid increase is notable and primarily originates from this region.

“

That is enormously damaging to the scientific understanding of where the earth is heading.

Despite the growing scientific concern, studying the Siberian permafrost presents substantial challenges. The vast and remote nature of the region, coupled with a scarcity of monitoring stations, complicates data collection. Furthermore, geopolitical tensions, including the severed ties between Western and Russian universities following Russia's invasion of Ukraine, have hampered collaborative research efforts. This disruption to fieldwork and data sharing is considered detrimental to understanding Earth's changing climate, according to earth scientist Jorien Vonk.

“

You have to do measurements on the ground, simply go into the field.