What are some alternative energy sources that have caused coal mines to close down in the us

Environmental regulations and Deregulating railroads in the 1970s allowed cheap Western coal to displace more costly Eastern coal, resulting in major job losses in the labor

Explanation:

pretty sure they split up because of religious conflicts.

the outcome of 1970 oil crisis in united states was that, they began to search ways on how to reduce oil.

in 1970 was a period when there were energy and oil crisis. those who were major centers for industrialization were forced to keep way from supplying of petroleum.

some of the result of this crisis was economic growth became stagnant because prices of oil surged.

due to the increased prices some countries like mexico and norway benefited.