Bitcoin enthusiasts are using a side effect of mining’s immense computational load to heat hot tubs, office buildings, and homes. At first glance, the Bathhouse spa in Brooklyn looks not so different ...

It’s harder than ever to mine bitcoin. And less profitable, too. But mining-company stocks are still flying, even with cryptocurrency prices in retreat. That’s because these firms have something in ...

Of course, bitcoin critics would argue there is nothing truly gained here in terms of energy efficiency. One of the side ...