CHINA – Csatellite images speak volumes for human action on the environment. Published by Nasa, they show a drastic drop in pollution levels in China linked to the drop in activity, containment measures and plant closings caused by the epidemic of coronavirus, according to the US space agency.
These satellite imagess show the levels of nitrogen dioxide – a harmful gas emitted by motor vehicles and industrial installations – over the period from 1 to 20 January, when the epidemic had not yet spread as much; and between February 10 and 25, when residents were confined to their homes as much as possible and many of the factories were shut down.
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# Coronavid19# COVID19france
We are the greatest threat to this planet. NASA images show the decline in air pollution in China to a lower degree due to traffic restrictions and the decline in industrial activity. pic.twitter.com/a0SCi5gLPj– pause_muslim (@MuslimPause) March 1, 2020
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NASA also compared the first two months of 2019 to the same period this year, for the city of Wuhan, as we can see below.
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An eye opener.
NASA pollution monitoring satellites have detected significant decreases in nitrogen dioxide (NO2) over China. A noxious gas emitted by vehicles & industries. Showing a direct relation between Wildlife trade (which is banned now), Health, Economy & Environment. pic.twitter.com/KNxH0nB23e
– Parveen Kaswan, IFS (@ParveenKaswan) March 1, 2020
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“A revelation.
NASA’s pollution monitoring satellites have detected significant reductions in nitrogen dioxide (NO2) over China. A harmful gas emitted by vehicles and industries. Showing a direct relationship between the wildlife trade (which is now banned), health, the economy and the environment. “
“This is the first time I have seen such a dramatic drop over such a large area for a specific event,” said Fei Liu, air quality researcher at Nasa’s Goddard Space Flight Center, in a statement. comments reported by the BBC.
She added that she had observed a decrease in nitrogen dioxide levels during the 2008 economic recession, but that the decrease had been more gradual.
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