Graviky Labs has launched a successful kickstarter campaign, which is painted with AIR-INK – an innovative ink made from air pollution. To develop this ink, a device was set up to capture particles of black soot from car exhaust fumes and chimney smoke, which is then processed and transformed into safe, top-quality ink. To promote the project, the team roped in illustrator Kristopher Ho to paint a huge billboard for London’s Shaftesbury Avenue, effectively ‘recycling’ the pollution into artwork. To make the scale of the undertaking clear, and intrigue passers-by, the billboard has a simple slogan: ‘This art is painted with air pollution’.