“Bitcoin mining—the process of generating new units of the currency by confirming bitcoin transactions on an online ledger called the blockchain—requires computing power, which is used to solve the complex mathematical puzzles used in the mining process. These problems are designed to become more complicated as more computers join the cryptocurrency’s network.
Analysis of how much energy it currently requires to mine bitcoin suggest that it is greater than the current energy consumption of 159 individual countries, including Ireland, Nigeria and Uruguay. The Bitcoin Energy Consumption Index by cryptocurrency platform Digiconomist puts the usage on a par with Denmark, consuming 33 terawatts of electricity annually.
The bitcoin network’s energy consumption has increased by 25 percent in the last month alone, according to Digiconomist. If such growth were to continue, this would see the network consume as much energy as the U.S. by 2019, and as much energy as the entire world by the end of 2020.”
Click here to read more from Newsweek