Biochar
Turning grape waste into carbon-busting biochar
29 Nov 2022
Grape waste from the wine industry is being turned into carbon-soaking biochar - which also enriches the soil. Kathryn speaks with Professor Stephen Joseph, an internationally renowned expert on… Audio
Turning green waste into black gold
4 Oct 2019
Energy consultant Phil Stevens wanted to reduce his carbon footprint so on his Manawatu lifestyle block he's experimenting taking old logs and tree trimmings and turning them into a special ingredient… Audio