Jun 26, 2019 5 common causes of equipment failure. Cause 1 Improper operation. Cause 2 Failure to perform preventive maintenance. Cause 3 Too much preventive maintenance. Cause 4 Failure to continuously monitor equipment. Cause 5 Bad (or no) reliability culture. The bottom line. Equipment failure happens. The impact of it can run the gamut from ... Aug 27, 2020 Mining companies must prepare for climate hazards. Today, 30 to 50 percent of production of copper, gold, iron ore, and zinc is concentrated in areas where water stress is already high. Climate change is expected to cause more frequent droughts and floods, altering the supply of water and disrupting operations.