The Global Gas Flaring Estimates are produced on an annual basis by the World Bank-managed Global Gas Flaring Reduction Partnership (GGFR), which comprises governments, oil companies, and international institutions working to end routine gas flaring at oil production sites around the world. GGFR, in partnership with the United States National Oceanic and Atmospheric Administration (NOAA) and the Colorado School of Mines, has developed global gas flaring estimates based on observations from a satellite launched in 2012. The advanced sensors of this satellite detect the heat emitted by gas flares as infrared emissions at global upstream oil and gas facilities. The Colorado School of Mines and GGFR quantify these infrared emissions and calibrate them using country-level data collected
by a third-party data supplier, Cedigaz, to produce robust estimates of global gas flaring volumes.
Reference: 1) GGFR Webpage: https://www.worldbank.org/en/programs/gasflaringreduction#1
2) Earth Observation Group Webpage: https://eogdata.mines.edu/download_global_flare.html