Australian designers from Buro North Studio created their Green X-Mas Tree by optimizing production, manufacturing, sourcing and shipping for an ecologically-friendly design. The resulting modern tree design has minimal production waste, a flat-packed design and sources locally-sourced plantation pine. Plus, the design is for the long-term and reusable for many years... Buro North. We are especially fond of the middle-sized tree as we feel it has the best proportions. Via: Dezeen.