Our passion for cheeseburgers isn’t doing the planet any good. All those Holsteins and Jerseys and relations—the ultimate sources of burgers, T-bone steaks, milkshakes, and ice cream—are wreaking havoc with Earth’s climate. But it looks like there’s a cure in sight, and it just might be seaweed. Specifically, a red alga known to scientists as Asparagopsis taxiformis.