Media artists and critical engineers Julian Oliver and Gordan Savičić show support for Just Stop Oil (JSO) activists by adding the group’s colours—orange and black—as a Permillion (2022) theme. The web app that doubles as a flashing protest display highlights the dramatic increase of CO2 in the atmosphere, from 315 ppm in 1958 to 416 ppm in 2022. Other climate advocacy groups supported with colour themes are Extinction Rebellion, Sunrise, 350, and Greenpeace.