This one weird climate fix is like ‘burnt toast’

It helps farmers and protects against wildfire. “The world needs to know about biochar,” says one scientist. So, what the heck is this charcoal-like, carbon-storing material? We meet a man on Vancouver Island who’s spending his retirement years making it for his neighbours. Then, producer Rachel Sanders finds out what potential this climate solution holds, what the pitfalls may be and what the challenges are with scaling it up.