Physorg: It’s black, it’s gritty, it’s essential for barbecues — and it just might save the world from global warming. Biochar, a kind of charcoal that is rich in carbon, traps CO2 from the atmosphere and can store it in soils for hundreds to thousands of years, says Professor Nathan Basiliko, a soil scientist at U of T Mississauga’s Department of Geography. Now, Basiliko and colleagues in the Faculty of Forestry are poised to demonstrate that wood waste from Ontario’s forest industry could …