These Indian engineers are turning diesel pollution into ink

Chakr Innovation's devices capture soot from diesel generator exhaust gasses which can then be used to make ink. Image: REUTERS/Ajay Verma


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A view of a device created by company Chakr Innovation to remove soot from diesel general exhaust, to clean the air and to allow ink to be created from soot, on a building in Gurgaon, a satellite city of New Delhi, India, March 19, 2018. Image: Thomson Reuters Foundation/Huizhong Wu

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