Global Energy Monitor

The Gas Index models the U.S. natural gas system to calculate life cycle methane leakage for natural gas supplies for 71 cities across the country, providing granular data on the emissions from use of natural gas. The analysis includes methane leakage from gas production areas, long-distance transmission pipelines, distribution pipelines within cities, customer gas meters, and within buildings from pipes and appliances (also known as “behind-the-meter” leakage).

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