https://apnews.com/d9963296c00340a0ae710d06776c08b0

MADRID (AP) — Authorities in Madrid on Wednesday defended their handling of gas from decomposing organic waste after scientists aided by satellite imagery said they had found major leaks of methane from two landfill sites serving the Spanish capital.

The leaks were revealed a week after pledges from the United States, the European Union and individual nations at the ongoing COP26 climate negotiations in Glasgow to limit emissions of methane, which is a potent contributor to global warming.