The Ozone dectectives hunting ozone-killing chemicals
BBC: It was a research station on the side of a volcano, 4,000 metres above sea level, that picked up the key signal: despite an international ban, someone, somewhere, was emitting an ozone-damaging pollutant. Stephen Montzka of the US’s National Oceanic and Atmospheric Administration (NOAA) was the first to notice. He had been analysing data…