Crypto mining

A lot of energy and money comes from these mining rigs. 

Getty Images

Tesla CEO Elon Musk shook the crypto market when he said his company would no longer accept Bitcoin for vehicle purchases. His tweet on May 13 cites an increase in the use of coal and other fossil fuels to generate the power used for mining as the reason behind his decision. Bitcoin dropped by 14% after that tweet and it continued to fall. 

Bitcoin, Ethereum, Dogecoin and other popular cryptos reached record highs this year, raising concerns about the amount of