Everyday Leadership: “Leaders Respect Past Achievements”
One of my daily duties as a supervisor in an underground coal mine was to check the barometer and record the reading in the foreman’s office prior to going underground. This check was especially important if the barometer dropped sharply in older mines.
The more developed mines contain a lot of areas where miners have removed all the coal they can and have sealed off the abandoned works with solid concrete blocks. The miners call these areas “old works.” Behind these concrete barriers, methane often builds up. Miners almost never travel behind the old works barriers so the methane accumulation there is not much of a problem.