Environment A New Study Calculates Bitcoin’s Massive Carbon Footprint Creating the cryptocurrency requires an enormous amount of energy. Tom Jacobs
Social Justice Weighing the Pros and Cons of a More Technology-Dependent Census The 2020 census will rely on more digital innovation than ever, which is creating both concerns and opportunities. Elana Broitman
Economics How Much Energy Does Bitcoin Actually Use? The secretive industry is notoriously hard to track, but an economics-based model could help researchers and policymakers estimate just how much electricity the cryptocurrency requires. Kate Wheeling
News in Brief Sierra Leone’s Blockchain Election That Wasn’t A slew of stories about the use of blockchain to ensure election security don't reflect the reality on the ground. Joshua Keating
Economics Why Bitcoin’s Value Could Eventually Approach Zero Unless energy efficiency improves dramatically, demand for cryptocurrencies will eventually be self-limiting. Richard Heinberg