In 2021, Campbell published another paper based on the same principle: If California spanned 4,000 miles of its canal system with panels, it would save 63 billion gallons of water from evaporation each year and provide half the new clean energy ...

As people’s incomes rise, they tend to switch from “starchy staples” like grains, potatoes, and roots to meat and dairy products. “You’d think there would be big cultural differences across human populations in these patterns,” says Thomas Tomich, a food ...

Nearly four hours into Tesla’s marathon Investor Day, someone in the audience tried again to bring Elon Musk, the Tesla (and Twitter and SpaceX) CEO back to the present day. From a stage at the Gigafactory in Austin, Texas, Musk ...