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When run at full-steam, MacBooks, iPads and iPhones can churn significant amount of data for their sizes, and use significant amount of energy. The batteries sold by Apple are pretty dense for their sizes, and they sell a lot of them.

It will definitely add up.

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Sure, I'm not hating on Apple - it's a perfectly reasonable thing for them to do. But I'd question how much of global cobalt production was ever going into macbooks/iphones rather than electric cars, lawnmowers, hoovers and whatever else.

This sets a good precedent but we'd need other manufacturers (who I'd guess are more cost-conscious) to follow suit before it changes much.

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