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https://theconversation.com/the-air-we-breathe-how-i-have-been-observing-atmospheric-change-through-art-and-science-187985>
"Overlooking the Bass Strait on the remote and windy northwest tip of
Lutruwita/Tasmania is the Kennaook/Cape Grim Baseline Air Pollution Station.
The air that arrives at Kennaook has travelled thousands of kilometres. It
hasn’t touched land for many days, weeks or even months. It is said to be some
of the cleanest in the world.
The powerful westerly winds – the “roaring forties” – carry air masses across
the Southern Ocean, reaching land well-mixed and uncontaminated by recent human
activity.
Considered “baseline”, this air is representative of true background
atmospheric conditions, and grants us insight into the driving forces behind
human-driven climate change.
When I arrived at Kennaook in mid-April, it was late afternoon and a storm was
brewing. The wind was blowing from the southwest at a steady 54 kilometres an
hour – baseline conditions – and the carbon dioxide levels were 413.5 parts per
million.
More than 40 years ago, scientists warned CO₂ levels like these would create
catastrophic and irreversible environmental damage and species collapse.
I climbed the stairs to the top deck, set up my camera and tripod, and started
filming."
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
