How Do Fungi Keep the Planet Healthy?
I keep thinking about the phrase "without having a brain." Toby Kiers studies fungi that negotiate with plants, swapping phosphorus for carbon, and they do it across networks that stretch for miles. There's no central command, no little mushroom CEO, yet the bargains get struck. That's the kind of thing that makes you question what intelligence actually is.
The carbon angle matters too. If fungal networks help keep carbon underground, then they're not just biology trivia. They're part of the climate story, and we're only beginning to map how much carbon they hold. I'd want to know what happens to those networks when we plow, pave, or poison the soil. Do the bargains break down? Does the carbon escape?
The planet's health may depend on transactions we can't see and don't fully understand. That's humbling, and a little thrilling. I'll be paying more attention to the ground next time I take a walk.