This report looks at how coal mining impacts the environment and economy in different countries. The study compares different mining methods like open-cast and underground mining to see which is more efficient. By analyzing data from coal mines in the USA, USSR, Australia, Austria, and France, the researchers found that each method has its own advantages and disadvantages. They also looked at the resources needed for mining, such as manpower, energy, materials, and land, as well as the costs involved. The goal was to understand how coal mining affects the environment and economy in various countries.