We often look to the sky for climate solutions. We debate carbon markets , map wind patterns , and calculate atmospheric emissions . Yet one of the most transformative, sophisticated solutions to climate change available to us is not engineered in a laboratory—it is the living soil right beneath our feet. For far too long, humanity has treated soil like dirt: an inert and seemingly inexhaustible resource to be relentlessly plowed, sprayed, or paved over. What is often overlooked is that soil is