<
https://theconversation.com/the-southern-ocean-has-the-cleanest-air-on-earth-we-have-just-discovered-why-226811>
"The Southern Ocean is renowned for having the cleanest air on Earth. But the
precise reasons why have remained a mystery, until now.
There’s more to it than just a lack of human activity. Yes, there are fewer
people down there using industrial chemicals and burning fossil fuels. But
there are natural sources of fine particles too, such as salt from sea spray or
dust whipped up by the wind.
Regardless of origin, fine solid particles or liquid droplets suspended in air
are known as “aerosols”. We consider clean air to have low levels of aerosols,
without discriminating between natural or industrial sources.
Our recent research discovered clouds and rain play a crucial role in scrubbing
the atmosphere clean."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
