• So Cal's First LEED Certified All-Solar Multi-Family Community.

    ORANGE, Calif. - Orange County's first all-green new-home community, opened its sustainable model homes to the public this weekend. It's also trendy Orange County's first LEED Certified residential community, and its first all-solar multi-family community. The community is called "Deopt Walk". Models range from 1,277- to 2,010-square-feet, and start in the $600,000 dollar range. >> Read the Full Article
  • New Product: Fencing Made From Ag Fiber And Recycled Plastic

    Torrington, Wyoming - Heartland BioComposites, of Torrington, Wyoming, has commercialized a new breed of composite wood using annually renewable wheat straw rather than wood flour, and has introduced its first product, a privacy fence. The company purchases regional wheat straw and compounds it with post-consumer high-density polyethylene (HDPE). The raw materials, which include 50–60% straw, 35–45% plastic, and less than 5% proprietary additives (described by the company as... >> Read the Full Article
  • How They Work: Ground-Source Heat Pumps, Tapping the Earth's Mass

    Ground-source heat pumps (GSHPs), often called “geothermal heat pumps,” exploit the relatively stable temperatures found just 5 feet (1.5 m) or more below the surface, either depositing or extracting low-intensity heat. Heat pumps—whether ground-source or air-source—are basically air conditioners that can be run in reverse to provide heating as well as cooling. Air conditioners (and refrigerators) make a relatively cool place cooler by extracting heat from it and releasing the heat... >> Read the Full Article
  • Philips Introduces Lower Mercury Fluorescent Lamps

    Philips Lighting Company has announced a new line of T-8 fluorescent lamps using the company’s Alto II technology to replace its ten-year-old Alto technology. >> Read the Full Article
  • Long Island Town Requires LEED Certification

    Babylon, NY - Developers and builders in Babylon, New York, are preparing to register their buildings for LEED certification to comply with a 2006 local law that goes into effect in December 2007. The law requires all new commercial buildings larger than 4,000 ft2 (400 m2) to achieve at least a LEED Certified rating. >> Read the Full Article
  • Newer Fluorescents Have Less Mercury, But Recycling Continues to Lag

    When Philips Lighting Company first introduced its Alto technology in 1995, the average amount of mercury in a four-foot (1.2 m) T-8 Alto fluorescent lamp was 14 mg. By encapsulating the mercury and creating a chemical barrier coating to prevent absorption of the mercury by the phosphor coating, Philips was able to lower the amount of mercury in its Alto lamps to 3.5 milligrams (mg). In 2007, Philips introduced the Alto II line with 1.7 mg of mercury per four-foot lamp (see Philips Introduces... >> Read the Full Article
  • FEMA Investigates Emergency Housing Air Quality

    Washington - The Federal Emergency Management Agency (FEMA) announced in August 2007 that it had suspended the installation, sale, transfer, and donation of emergency-housing trailers until concerns over high levels of formaldehyde can be investigated. A common ingredient in pressed-wood products, including particleboard, formaldehyde can cause eye, nose, and throat irritation; wheezing and coughing; fatigue; skin rashes; headaches; nosebleeds; and severe allergic reactions. The U.S.... >> Read the Full Article
  • Seattle Grocery Store Earns LEED Gold

    Redmond Washington - The Redmond, Washington, branch of Seattle-based PCC Natural Markets became the first grocery store to achieve a Gold certification in any of the U.S. Green Building Council’s LEED rating systems. The store, certified under LEED for Commercial Interiors, features 28 skylights that bring daylight into the store and reduce general lighting electricity use to an anticipated 0.21 watts/ft2 (2.25 W/m2), an 86% reduction compared with a base case building in minimal compliance... >> Read the Full Article
  • Tahoe Research Center Among 'Greenest' Buildings In World

    LAKE TAHOE - One of only five such buildings in the world, the new home of the UC Davis Tahoe Environmental Research Center has received a Platinum LEED Certification from the U.S. Green Building Council. The center is located in Incline Village, Nev., on the north shore of the lake. The Tahoe Center is a 45,000-square-foot facility housing UC Davis's research laboratories, a public education center; Sierra Nevada College laboratories and classrooms; and office space for the Desert Research... >> Read the Full Article
  • Researchers Rewrite Origins Of Ancient Urban Sprawl

    University of Cambridge - A team of archaeologists, including scholars from the University of Cambridge, have unveiled new research that could rewrite the history of the world's earliest cities. Surveys at the ancient settlement of Tell Brak, in north-east Syria, have produced fresh evidence that indicates the first urban settlements were the result of natural migration, and not the artificial creations of those in power. Academics have traditionally believed that the growth of ancient... >> Read the Full Article