Bitcoin could cost us our clean-energy future

The total energy use of this web of hardware is huge - an estimated 31 terawatt-hours per year. More than 150 individual countries in the world consume less energy annually. And that power-hungry network is currently increasing its energy use every day by about 450 gigawatt-hours, roughly the same amount of electricity the entire country of Haiti uses in a year.[...]In just a few months from now, at bitcoin's current growth rate, the electricity demanded by the cryptocurrency network will start to outstrip what's available, requiring new energy-generating plants. And with the climate conscious racing to replace fossil fuel-base plants with renewable energy sources, new stress on the grid means more facilities using dirty technologies. By July 2019, the bitcoin network will require more electricity than the entire United States currently uses. By February 2020, it will use as much electricity as the entire world does today.This is an unsustainable trajectory. It simply can't continue.Not only is bitcoin tulips, but it's also incredibly bad for our planet. These energy numbers are insanity.