A passive house takes an active stand for the environment

A warehouse in Switzerland is being transformed into new creative workspaces. The catch: It’s being constructed out of reused building materials. About 70 percent of it is being made from old materials like wood floorboards, steel beams, and windows. A network of treasure hunters are on the lookout for used materials that can be used in constructing these buildings. The workspace is nearly complete and it already has tenants for all of the spaces. They were also able to cut the building’s carbon emissions in half.

More and more commercial real estate projects are popping up around the United States that are focused on “deep green” building. This movement suggests that it’s not enough to just make a building out of renewable materials, but they can also be self-sustaining. For example, the Watershed, an office building in Seattle, has a slanted roof that collects rainwater that is then used in toilets. These types of projects can be more complicated and expensive to build, but developers can save money in the long run with the improvements.

Across Salt Lake City, Utah, housing developers are building more net zero energy homes. Facing air quality issues, the state has yet to set more energy efficient codes for new homes, which means the kind of homes being built by developers like Redfish, Garbett Homes, and Ivory Homes, are being constructed on a much smaller scale. Such homes, while costing 2-5% more to build, have shown to decrease energy costs by 50-60%.

An economic shift to renewable energy could take decades, but thanks to rapidly evolving disruptive technologies, dropping prices of solar and wind power sources, and increasing market demand for green business, the new age of renewable energy could encompass the world economy much more quickly.

By 2050 the percentage of the world's population living in cities will increase to two-thirds with significant environmental strains. In Colombia, a company called Conceptos Plasticos collects recyclable plastic material, melts it down and moulds it into bricks used to build houses for the local community. Singapore too, is on the cutting edge of environmentally sustainable urban solutions including vertical farms and living buildings.

With climate change an ever-increasing threat, one city in Denmark is helping to inspire hope through the successful implementation of a self-sustaining treatment plant that provides fresh water to the local community using only energy produced from the waste and sewage it filters. Other cities are now looking to replicate the model.

Rahr Malting, a brewery in Shakopee, MN, has found a creative way to sustainably address their energy needs. The company partners with the Mdewakanton Sioux Community to use waste barley hulls from the malting factory to generate electricity for their facilities, selling excess power to the public grid while the waste heat sprouts the malt to make beer.

An architect in Chennai, India, is retrofitting private residences and public buildings to be more sustainable. They make changes like installing energy-efficient upgrades, solar panels, improved ventilation, and low-flow plumbing fixtures to reduce water and energy consumption.

A collaborative partnership among local and national organizations made it possible to install solar panels on 10 Greensboro homes for free. Because of this effort, many low-income families have seen a significant decrease in their energy bills and an increase in value of their homes. Although convincing people to install the panels was a challenge, organizers are now figuring out how to scale the initiative and make it sustainable in the longterm.

Apartments at Front Flats, a new residential building in Philadelphia, is powered by 492 solar panels that are wrapped around the building. The point: to demonstrate that developers can design buildings that are energy-efficient and be built at an affordable cost. It’s not clear yet if the building is “net zero” in terms of producing as much energy as it consumes, but residents are paying only $40 a month for utilities.