Ingels and firm partner Jakob Lange launched a Kickstarter campaign last week to raise $15,000 to finance the final prototype for what they claim will be the world’s first steam ring generator. The smokestack will use excess steam from the BIG-designed Amager Resource Center (ARC)—set to be the world’s cleanest waste-to-energy plant—to eject a 70-foot-wide vapor ring for every ton of carbon dioxide it incinerates. 

“By sweeping nothing under the carpet, but rather projecting our carbon footprint onto the Copenhagen sky, we provide every single citizen intuitive information to help them inform the decisions they make for their lives and for the city that they want to live in,” the campaign’s website states. “You will be a part of history.”

BIG has been working with rocket scientists and combustion engineers on the chimney, which was originally proposed by Berlin art studio realities:united. The firm is designing the system in collaboration with specialists from Rumlaboratorium (a group that is also developing a one-man space capsule) and the Danish Technical University.

If environmentally conscious public art wasn’t enough, the ARC facility will be crowned by a year-round artificial ski slope, which will feature more than a quarter mile of runs. ARC is currently under construction and set to open in 2017.

While Kickstarter contributions won’t fund the real chimney installed on the plant, they will fund the third and final prototype (two versions were successfully tested in August 2014 and this past April). If approved, the smokestack will be adjacent to the ski slope’s access elevator.

The names of those who donate $100 or more will be engraved into the steam ring generator prototype (photo documentation included). A pledge of $10,000 or more earns a special spot at the waste-to-energy plant’s grand opening in Copenhagen.

According to the Kickstarter page, the firm has plans to demonstrate the prototype at the Chicago Architecture Biennial.

Watch the campaign video below: