Bio-coal: the low-cost, low-carbon alternative?

India’s Business Standard reports on a plea by the country’s bio-coal manufacturers for government support. ‘White coal’ briquettes – made from “mustard, soya stalk, sawdust, ground nut shells, cotton waste, rice husk and bagasse” – are used extensively by certain industries as alternative to coal, but producers want the government to implement a national scheme for collecting agricultural waste to help the industry grow. Compared with coal, bio-coal is cheaper, burns longer and hotter and produces less carbon emissions.