Post by garyriccio on May 12, 2020 12:49:42 GMT
From the article at Space.com, Dramatic effect of coronavirus lockdowns seen from space
By Rafi Letzter March 03, 2020
The air above China cleaned up faster than ever before in living memory.
Orbital instruments designed to monitor air quality picked up a substantial drop in concentration of nitrogen dioxide (NO2) pollution since January. NO2 is a harmful substance emitted by gas vehicles, power plants and other machines that burn fossil fuels.
Includes a map shows the sharp decline in emissions over China between early January and late February as parts of the country went on lockdown in an attempt to contain the COVID-19 coronavirus. (Image: © NASA Earth Observatory)
By Rafi Letzter March 03, 2020
The air above China cleaned up faster than ever before in living memory.
Orbital instruments designed to monitor air quality picked up a substantial drop in concentration of nitrogen dioxide (NO2) pollution since January. NO2 is a harmful substance emitted by gas vehicles, power plants and other machines that burn fossil fuels.
Includes a map shows the sharp decline in emissions over China between early January and late February as parts of the country went on lockdown in an attempt to contain the COVID-19 coronavirus. (Image: © NASA Earth Observatory)