Pollution Printers

India’s ubiquitous electricity generators are largely to blame for Delhi’s dangerous levels of particulate matter—which stretch well beyond the WHO’s safety limit.

How to stop all that soot from entering the air? Think ink.

With its namesake “Chakr Shield,” the startup Chakr Innovation captures soot particles before they reach the atmosphere, suspends them in liquid form, combines them with a binding agent. And voilà! It’s ink.

The world isn’t short on ink—though Chakr does sell it to the likes of Dell. Rather, the business model is built around tackling bad air. Next up: leveraging air pollution against water pollution.

UN Environment


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