Solving the burning problem

Air pollution due to burning the stubble after harvest in winter in North India is big issue, socially and politically. As Delhiites brace up for another winter of smog and suffocating pollution from stubble burning,  here is the story of Kriya Labs, a New Delhi-based start-up, that transforms agricultural waste into a valuable resource to make paper and biodegradable products. SPAN writer Michael Gallant reports