Scientists using high-resolution satellite measurements have mapped methane emissions across multiple regions, identifying concentrated “hot spots” that often correspond to pipeline leaks, landfill vents, and specific agricultural facilities.

The value of the new data is speed. Instead of relying on periodic inspections, operators can be alerted within days, sometimes hours, that a leak is likely occurring, researchers said.

Regulators and investors are increasingly focused on methane because it traps far more heat than carbon dioxide over shorter timeframes. Rapid repairs can deliver near-term climate benefits while longer decarbonization efforts continue.