In early 2020, satellite data showed a decline in air pollution coinciding with Covid lockdowns. One year later, as lockdown restrictions loosen and regular activity resumes, air pollution is bouncing back to pre-Covid levels.
Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. Today, as an EarthSky.org Editor, she helps present the science and nature stories and photos you enjoy. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.