It's a comparison of the markets for different kinds of biochar: Wood, manure, crop residue, compost, and mixed feedstock. It shows the differences between them. I couldn't figure out how to transfer the information from facebook. Sorry,
John S
PDX OR
One thing I've noticed at big box stores is the better quality grow mixes loudly declare a percentage of biochar in the mix.
I don't buy this stuff, but I like how it normalizes and promotes biochar as a premium soil additive. It's like a kind of brand recognition in the public mind, regardless of the company selling it.
Because ice cream has no bones. But feel this tiny ad:
Permaculture Voices 1, 2 and 3 - all 117 hours of video!