I missed this story in January but was reminded by a link in the IBI January newsletter (linked in the ABE January newsletter)
“To condition the soil, Davis and Clarken have devised a way to make biochar, a charcoal-like substance made by burning organic material at high temperatures. As well as enriching the soil for years to come, biochar is carbon negative.”
https://www.rnz.co.nz/national/programmes/afternoons/audio/2018781782/new-zealand-s-first-microforest
A bit late finding this but as there is a new story on microforests I thought timely to update.
https://podcastaddict.com/nine-to-noon/episode/204770522 AND here is an update from RNZ