The graduate of the Massachusetts Institute of Technology devised a way to catch carbon soot with a device attached to a car exhaust pipe and turn the pollution into Air Ink. Forty-five minutes of auto fumes fills one of Sharma’s specially designed calligraphy pens. The ink also is available in markers and cans.
“What is the best place for this carbon soot to go?” Sharma, of India, asks. “Is it your lungs or is it something like inks that we make?”