css1971

The Topsoil Crisis: Dirt Isn't Cheap Anymore

Very interesting article.

Google for Terra Preta.

There are a couple of producers of pyrolysis units which can produce both bio-char/agrichar for soil improvement, and, oil and gas for energy. The inputs are biological agricultural and domestic waste, which rather makes them carbon negative.

Not big at the moment, but as they say, every problem is an opportunity.