This issue seeks to highlight sustainable building practices. Sustainability is not defined by what we build, but how we build. Going green is not as simple as just using local materials, and sustainability doesn’t equate to using primitive techniques. Today, it is pertinent to use technology to accelerate our path to a greener future. This issue takes you to some of the most thoughtfully, consciously designed spaces, each illustrating a different approach, each a different definition for sustainability. Together, to build, an environmentally-conscious, climate-responsive world. Remember, the Earth doesn’t need us, we need the Earth!