This dark material: the black alchemy that can arrest carbon emissions

Not only does biochar trap carbon when it is created, it is heating homes in Sweden and feeding cows in LincolnshireIt traps carbon in the ground for centuries, boosts plant growth, provides a sustainable heat source and could even reduce methane emissions from cows. Biochar may not be a silver bullet to combating the climate emergency, but it certainly ticks a lot of boxes.A form of charcoal created via a special chemical process, biochar is not much to look at, resembling the aftermath of a particularly good barbecue. But it is already heating homes in Stockholm, feeding cows in Lincolnshire, and nourishing trees near Loch Ness. Continue reading...