Earth-bound scientists validate space-based methane estimates
Researchers have validated the effectiveness of 12 spectral-imaging satellites in detecting and quantifying atmospheric methane emissions. The study confirms that while all tested satellites can detect the gas, some technologies are significantly more accurate than others.
Why it matters
Improved satellite monitoring of methane is critical for climate change mitigation, as it allows for more precise identification and reduction of greenhouse gas leaks.
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In 2025 scientists put the methane-sensing capabilities of 12 spectral-imaging satellites to the test. Some were designed specifically to measure atmospheric methane; others were repurposed for the task. Now the researchers have shared their results: each of the satellites can be used to detect methane, but some are better than their counterparts for quantifying the potent greenhouse gas ( Nature 2026, DOI: 10.1038/s41586-026-11115-0).
“This experiment is the latest in a series of studies that have come out of the Brandt Group lab at Stanford [University],” says Frances Reuland , a PhD student in the engineering lab. Each project has focused on the ability of various technologies to measure methane leaks on Earth.
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