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In office since 2015, Muriel Bowser last week announced plans to set aside $7 million for the District’s first Green Bank to support building improvements that will reduce carbon dioxide emissions. Specifically the fund would allow large building owners and those undertaking renovations to obtain affordable loans to replace aging heating, ventilation and cooling systems — among the largest sources of carbon emissions in the city. Low-interest loans would also be available to fund more-experimental technologies, such

If you’ve ever thought about getting solar panels on your house but worried about whether it was worth it, Google may now have just the thing to help you decide. In a new expansion of its Project Sunroof, Google has built 3-D models of rooftops in all 50 states, looked at the trees around people’s homes, considered the local weather, and figured out how much energy each house or building can generate. A home owner

Whether you’re an energy efficiency nerd or trying to reduce those massive monthly Washington DC utility bills, ensuring precise attic insulation and ventilation is vital. In essence, all ventilation is about circulating air to keep it fresh and to reduce moisture levels. Some estimates claim that up to 90% of US homes have unreasonably high levels of moisture. Understanding whether your home could benefit from attic ventilation improvement might be a real a roof-saver. Insulation on