The ozone layer that shields life on Earth from deadly solar radiation is on track to recover within decades, but controversial geoengineering schemes to blunt global warming could reverse that progress, a major scientific assessment warned Monday. The ozone layer is situated in the stratosphere at 15 kilometres altitude and protects Earth from the Sun’s ultra-violet radiation. Without it there’d be no plants, no animals… none of us would be here! A natural shield comes […]