Scientists once predicted meat-making machines on every kitchen counter, but so far cultured meat—grown from the cells of an animal in a lab or factory—has only been seen at a handful of high-end restaurants. There are entirely practical reasons the stuff has yet to make its debut at McDonald’s, but also bizarre, conspiratorial ones; some […]
The Earth’s own heat can be brought up from underground and used as a source of energy that emits almost no greenhouse gases and can operate 24/7 almost anywhere on the planet.