Concrete contributes about eight percent of all carbon dioxide emissions worldwide.
This article showcases an innovative approach to using concrete sparingly through the use of 3D printing. This has been picked up by notable media outlets such as Designboom and Mashable where I first saw this.
Developed at ETH Zürich in collaboration with FenX AG, FoamWork explores how foam 3D printing (F3DP) can produce distinctive shapes for stay-in-place, or temporary and recyclable concrete casting.

The foam shapes produced with F3DP can be used as stay-in-place applications or removed and recycled for printing the next formwork.
