BIG VORTEX is the idea of Berlin-based artists realities:united. Waste gases will leave the chimney of the plant (which will turn waste into energy) as revolving gas clouds in the shape of smoke rings. The rings become visible due to the condensation of water in the flue gases as they slowly rise and cool, before resolving into the air. The rings produced in this way will, the artists estimate, be 30 metres in diameter and three metres thick and “constitute exactly one ton of fossil carbon dioxide, which is added to the atmosphere”. “[In] this way the rather abstract pollution aspect gets somewhat more graspable and understandable, something you can see and relate to,” the artists say.