Connecting the dots of the Urengoy pipeline

Measurements gathered by the Copernicus Sentinel-5P satellite between April and July 2018 show nitrogen dioxide emissions over Urengoy–Pomary–Uzhhorod pipeline. When scientists from the Royal Netherlands Meteorological Institute (KNMI) began to investigate these measurements, they quickly noticed a string of spots of nitrogen dioxide, in an otherwise remote area of northern Siberia.