A simple machine to stop climate change

This from the book "The Overstory" by Richard Powers, 2019 Pulitzer Prize for fiction

....a simple machine needing no fuel and little maintenance, one that steadily sequesters carbon, enriches the soil, cools the ground, scrubs the air, and scales easily to any size. A tech(nology) that copies itself and even drops food for free. A device so beautiful it's the stuff of poems.

Trees. Catchy name, too.