https://www.sustainabilitybynumbers.com/p/energy-transition-materials
"Back in January, I published a post looking at the amount of minerals that
were required for the low-carbon energy transition. This came from projections
in the International Energy Agency (IEA)’s
The Role of Critical Minerals in
Clean Energy Transitions.
It projected that the world would need to produce between 27 million tonnes in
its Sustainable Development Scenario, and 43 million tonnes in its Net-Zero
scenario by 2040. Those scenarios did not include steel. But including them
doesn’t change things significantly: we’re talking about tens to hundreds of
millions of tonnes.
Sounds big, until you compare it to the 15 billion tonnes of fossil fuels that
we dig out of the earth every year.
But we need to make another comparison – not only comparing the total amount of
material that’s used, but the amount of ore that needs to be mined, or rock
that needs to be moved. Some of these minerals are in rocks at very low
concentrations – that means that to get 43 million tonnes, we’d need to extract
a lot more than that.
In this post, I’ll take a look at several studies that do this adjustment."
Via
Future Crunch:
<
https://futurecrunch.com/good-news-rail-education-ethiopia-conservation-congo/>
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
