Global alarm system watches for methane superemitters

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https://www.science.org/content/article/global-alarm-system-watches-methane-superemitters

By Paul Voosen, Science. 

Excerpt: Methane is a stealthy greenhouse gas, erupting unpredictably from sources such as pipelines and gas fields. Scientists have wanted to catch these emitters in the act. In the past, watchdogs had to monitor likely sites from the ground or by airplane. Now, massive, short-lived leaks can be detected automatically, from space, anywhere in the world—a first step toward plugging them and slowing climate change. ...Although so far the technique only captures the largest blowouts, there’s no better place to begin, says Ilse Aben, an atmospheric scientist at the Netherlands Institute for Space Research (SRON) and co-author of the new work. ...SRON’s automatic methane spotter relies on the Tropospheric Monitoring Instrument (TROPOMI) aboard the Sentinel-5 Precursor satellite, launched in 2017 as part of Europe’s Copernicus program of Earth observation.... 

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