Passive House standards a solution for efficient affordable housing

Hempcrete, a combination of hemp, water, and lime, can be used as a more sustainable insulation option for buildings. The material improves energy efficiency, produces less carbon than options like fiberglass and foam, and will continue to capture carbon while used as insulation.

Innovators are developing new air conditioning units to keep people cool as temperatures and humidity rise without contributing to greenhouse gas emissions. Alongside improved energy efficiency, the new tech focuses on sensing and reducing humidity in real-time and adjusting itself as humidity fluctuates throughout the day.

The Massachusetts state government introduced a new building code, called the specialized stretch code, to set new construction up for decreased fossil fuel use. It’s an opt-in code, so municipalities vote on whether to adopt it, and many have.

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.

Memphis Gas Light and Water’s weatherization program is helping city residents prepare their homes for increasingly intense storms in ways that also reduce their energy use from fossil-fuel-derived sources and their utility bills. Contractors may install a new air conditioner or repair walls, but the resident is never charged for the services because ratepayers round up their bills to cover the cost.

Two Texas-based companies are 3D printing homes in an effort to combat the housing crisis and produce fewer emissions than a typical home construction. The companies lay the foundation and rebar for support. Then, a machine with a robotic arm builds up the walls by printing layers of a cement-like material.

Instead of demolishing a campus building in need of many renovations Rockhurst University repurposed it. The focus on sustainability during the rebuild made it the most energy-efficient building on campus and prevented the release of the carbon embedded in its concrete.

Substitutes for city parking requirements are becoming increasingly popular throughout the United States. Rather than using off-street parking, many housing developers now provide residents with alternatives that promote reduced driving. This method is better for the environment and lowers the cost of housing in urban areas.

Prescribed Burn Associations (PBAs) in Oklahoma bring together landowners to share equipment, labor, and expertise needed to conduct prescribed burns. Early evidence of efficacy include restored native plants and improved land health, suggesting the model can help reverse woody encroachment and improve grassland and wildlife habitat on participating properties.

The Fairbanks North Star Borough implemented a comprehensive strategy to combat winter air pollution from wood-burning stoves, including: a stove replacement program that swapped over 4,000 inefficient stoves for more modern, clean-burning models, promoting kiln-dried wood with lower moisture content that burns better and adopting low-sulfur fuel requirements. The efforts have cut particulate levels in half and sulfur dioxide in the atmosphere has been reduced by 50%.