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The next time you see loudmouths like Al Gore and John Kerry crow about the need to green economies with overpriced EV vehicles, just remember what those expensive batteries you'll have to change every 8 years for 10k dollars on average come from.
In the case of cobalt, 60% of the world’s supply comes from the Democratic Republic of the Congo where large numbers of unregulated mines use children as young as seven as miners. There they breathe in cobalt-laden dust that can cause fatal lung ailments while working tunnels that are liable to collapse.
“Men, women and children are working without even the most basic protective equipment such as gloves and face masks,” said Mark Dummett of Amnesty International, which has investigated the cobalt-mining crisis in DRC. “In one village we visited, people showed us how the water in the local stream that they drank was contaminated by the discharge of waste from a mineral processing plant.”
Then there is the issue of lithium mining. World production is set to soar over the next decade. Yet mining is linked to all sorts of environmental headaches. In the so-called Lithium Triangle of South America – made up of Chile, Argentina and Bolivia – vast quantities of water are pumped from underground sources to help extract lithium from ores, and this has been linked to the lowering of ground water levels and the spread of deserts. Similarly in Tibet, a toxic chemical leak from the Ganzizhou Rongda Lithium mine poisoned the local Lichu river in 2016 and triggered widespread protests in the region.
Nor will these ecological problems be confined to specialist metals, analysts have pointed out. They say that rising demands for traditional materials such as cement – for building hydro-electric dams – or for copper, to provide cables to link wind and solar farms to cities and to build electric cars, could also cause widespread environmental damage unless care is taken.