https://apnews.com/726ff63bb43bdca65e41625b1e223040

An unplanned grand experiment is changing Earth.

As people across the globe stay home to stop the spread of the new coronavirus, the air has cleaned up, albeit temporarily. Smog stopped choking New Delhi, one of the most polluted cities in the world, and India’s getting views of sights not visible in decades. Nitrogen dioxide pollution in the n ortheastern United States is down 30%. Rome air pollution levels from mid-March to mid-April were down 49% from a year ago. Stars seems more visible at night.