<
https://theconversation.com/groundwater-is-heating-up-threatening-life-below-and-above-the-surface-229177>
"Under your feet lies the world’s biggest reservoir. Groundwater makes up a
whopping 97% of all usable freshwater. Where is it? In the voids between grains
and cracks within rocks. We see it when it rises to the surface in springs, in
caves, or when we pump it up for use.
While groundwater is often hidden, it underpins ecosystems around the world and
is a vital resource for people.
You might think groundwater would be protected from climate change, given it’s
underground. But this is no longer the case. As the atmosphere continues to
heat up, more and more heat is penetrating underground. There is already
considerable evidence that the subsurface is warming. The heat shows up in
temperature measurements taken in boreholes around the world.
Our team of international scientists have combined our knowledge to model how
groundwater will heat up in the future. Under a realistic middle of the road
greenhouse gas emission scenario, with a projected mean global atmospheric
temperature rise of 2.7°C, groundwater will warm by an average of 2.1°C by
2100, compared to 2000.
This warming varies by region and is delayed by decades compared to the
surface, because it takes time to heat up the underground mass. Our results can
be accessed by everyone globally."
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
