If you've ever wanted to draw something using air pollution, here's your chance.
A company called Graviky Labs has figured out a way to turn air pollution into ink.
It works by attaching a device that collects pollutants to the tailpipe of a car. The company says 45 minutes of pollution can make 30 milliliters of ink.
The researchers then remove the heavy metals and carcinogens, leaving behind carbon pigment. After that, the pigment is made into various inks and paints.
Right now, the ink comes in two forms: felt-tip pens and a bottle of Air-Ink. Eventually, the Graviky team wants to branch into spray paints and oil-based paints.