Paul Hawken introduced the notion of building in the value of products that help or hurt the commons, a notion he called Natural CapitalismWhat is the value of charcoal when you factor in it's benefits to our shared lands?

Water

Those research papers on nutrient retion, that's a lot of fertilizer kept out of our water systems. Fertility quickly becomes a waste problem. 

Air

Nearly half of the CO2 that would have gone into the air as the wood rooted away becomes sequestered as carbon that's locked in and enhancing soil for a long time. 

Prevention of fire danger

Forest restoration decreases fire danger and returns damaged land back towards old growth systems.