We rely heavily on groundwater – but pumping too much threatens thousands of underground species

Tue, 16 Jan 2024 03:34:15 +1100

Andrew Pam <xanni [at] glasswings.com.au>

Andrew Pam
<https://theconversation.com/we-rely-heavily-on-groundwater-but-pumping-too-much-threatens-thousands-of-underground-species-218919>

"Groundwater is the world’s largest unfrozen freshwater reserve. Australia’s
Great Artesian Basin alone holds enough water to fill Sydney Harbour 130,000
times. Worldwide, groundwater provides drinking water for half the world’s
population. Countries like Denmark and Austria rely entirely on it for drinking
water.

Globally, we pump almost 1,000 cubic kilometres of this ancient water each
year. We’re using it far faster than it can naturally replenish. About a third
of the world’s largest groundwater basins are in distress, meaning levels are
continuously declining.

That’s bad news for the thousands of species living down there, including the
cavefish, blind eels, blind beetles and translucent crustaceans that rely on
groundwater.

There’s little to no protection in place for these species globally. But
groundwater ecosystems play a vital role in surface ecosystems. Our new
research shows groundwater supports areas of high surface biodiversity across
one half of the world."

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

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