Energy Star, the federal energy efficiency program, has announced that it will no longer certify programmable thermostats. According to Energy Star spokesperson Jill Abelson, the thermostats have the potential to save homes $150 or more yearly when used properly, but in practice, homes with programmable thermostats don’t consume less energy... Read more

The Collaborative for High Performance Schools (CHPS) has recognized the Greenguard Children and Schools product certification program from the Greenguard Environmental Institute (GEI) as a means of improving indoor air quality in school buildings. GEI’s product certification program complies with California’s Department of Health Services... Read more

Michael Potts has replaced Amory Lovins as CEO of the Rocky Mountain Institute (RMI), the Colorado-based nonprofit and self-described “think and do tank.” Potts has been a member of RMI’s board of trustees since 2005. He previously served as CEO of software design company American Fundware, and, most recently, as a managing partner at Galway... Read more

A report from the United Nations Environment Programme, titled “Buildings and Climate Change: Status, Challenges, and Opportunities,” details connections between the building industry and efforts to curb greenhouse gas emissions. According to the report, which focuses primarily on Europe, more rigorous energy efficiency standards there could... Read more

Noting that “it is the policy of the United States that federal agencies conduct their … missions in an environmentally, economically, and fiscally sound, integrated, continuously improving, efficient, and sustainable manner,” President George W. Bush signed an executive order titled “Strengthening Federal Environmental, Energy, and... Read more

In a perfect world, energy simulations and design tools would be so well integrated that each time an architect moved a wall, added a window, or changed a lighting specification, the building’s predicted energy performance would be updated and displayed instantly. With that sort of real-time feedback, designers would quickly become skilled at... Read more

Products earning Cradle to Cradle (C2C) certification, a multifaceted program run by McDonough Braungart Design Chemistry (MBDC), are now recognized in the LEED Rating System, following an April 2007 ruling by the U.S. Green Building Council (USGBC). The new “administrative credit interpretation ruling” allows projects to earn a LEED credit if... Read more

New Mexico Governor Signs Green Home Tax Incentive—New Mexico building owners can now earn an income tax credit for building or renovating a green building. Tax credits for residential buildings range from $4.50–$9.00 per square foot ($50–$100 per m2) for the first 2,000 ft2 (186 m2) depending on the rating a building receives through the U. S... Read more

The remarkable ability of titanium dioxide (TiO2) to refract, or bend, light makes the substance suitable for myriad applications, including pigment in paint, paper, plastics, cosmetics, and food; a light-blocking ingredient in sunscreen; and a UV-reflector in applications including ceramics and glass. In addition, some TiO2 molecules in a... Read more

Insulated concrete forms (ICFs) are permanent forms for poured-concrete walls; the forms are typically stacked without mortar before concrete is poured, providing insulation and often reducing the amount of concrete needed for the resulting wall.

The insulation material varies from system to system, with the most common being high-... Read more

• The

World Birding Center Headquarters in Mission, Texas, designed by Lake Flato Architects, is an integral part of... Read more

The energy firm BP (formerly British Petroleum) has announced the creation of the Energy Biosciences Institute and has selected the University of California–Berkeley, the University of Illinois–Urbana-Champaign, and Lawrence Berkeley National Laboratory to lead the effort. In addition to contributing $500 million over ten years, BP will also... Read more

CertainTeed Corporation has altered the formulation of its fiber-cement siding lines to add recycled flyash. CertainTeed WeatherBoards and ColorMax fiber-cement siding lines now include 30%–50% flyash in addition to wood fiber, portland cement, and other additives. Cement is energy intensive to produce, and the use of flyash, a waste product... Read more

Vol. 15, No. 7.) LSG’s line of LED lighting products (see table below) incorporates the company’s proprietary Optimized Digital Lighting (ODL)... Read more

The American Institute of Architects has announced the admission of 76 architects to its College of Fellows for 2007. Elected to the position by a jury of their peers, fellows are recognized for their design achievements and for their service to the profession and the public. Among the fellows recognized were several who specialize in green... Read more