This exciting article from Fixing the System discusses soil as the engine of our planet’s cooling and carbon capture system.
Here’s an excerpt from the article:
“Rich soils exponentially increase the capture of water and carbon
What is powerful about healthy soil, and it really is the central element of the whole sponge discussion, is that now we have 66% of the volume of the matrix which is available for infiltrating and retaining water. That retained water is what can sustain plant growth. Because of these voids, and the increased surface area exposed by them, this healthy soil can vastly increase the availability of nutrients. Now we have the phosphorus, the calcium, and the zinc all exposed for microbial activity.
So the bio-productivity of that soil increases exponentially, simply by creating those voids. The rootability of these soils vastly increases, that is the roots can grow, and penetrate and proliferate. Instead of 6 inches, they can grow down to 6 feet, or 20 feet, so the volume of soil resource that is now available for plant growth, and the drawdown of carbon that we mentioned earlier, is exponentially increased.
Soil formation is the engine of nature’s cooling and carbon capture system
So the whole bio-productivity of these healthy soils, the resilience of those soils, the capacity to infiltrate, to buffer, to extend life vastly increases. This process is what nature did to create the biosystem, to create the hydrology, and in very simple terms, that is all we have to do.
The process is taking sunlight, carbon dioxide and water to produce plants, using photosynthesis to create sugars, and fungi and microorganisms that convert those sugars into stable soil carbon, which is just the carbon based organic detritus or ‘bed springs’. This process is how the Earth ran 95% of its heat dynamics and its natural hydrological cooling.
So, if we have to draw down 20 billion tonnes of carbon, if we have to rebuild this soil-carbon sponge, we simply need to copy nature, and speed up the soil formation process.”