education.decodee01 on Instagram: "The video captures manual coal extraction ("black diamonds") in a narrow, 3200-foot-deep tunnel, where miners use picks and carts pulled by a surface winch, highlighting precarious wooden supports and steep inclines. With 1.3 million views and 3,000+ likes, the post sparks awe and dread in replies, emphasizing risks like cable snaps or collapses that could trap workers far underground. Underground coal mining carries fatality rates about 2.4 times higher than s