Clean energy found in old coal mines

Cumberland, B.C. was built on coal mining—both literally and practically. Thousands of workers were employed and millions of tons of coal were exported over 80 years before the mines were shuttered, leaving deep holes in the ground and a deeper void in the village's economy.

from Energy & Green Tech News - Energy Sciences News, Green Tech, Energy, Energy Science https://ift.tt/4MNtpn5

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