Sixty-one buildings are now certified under LEED™ versions 1.0, 2.0, and 2.1; and nearly 900 projects have registered for certification. There are now over 4,000 LEED-accredited professionals, and more than 10,000 people have participated in LEED training workshops. The pilot programs for LEED for Commercial Interiors (LEED-CI) and LEED for... Read more

I’m happy that chromated copper arsenate (CCA) preservatives are finally being phased out [see

EBN

Vol. 12, No. 3], but one small problem remains: There is no way to tell wood treated with ammoniacal copper quaternary (ACQ) or other alternative treatments from that treated with CCA once it’s been installed and the stapletags... Read more

The current

“safe” level of lead exposure, endorsed by the Centers for Disease Control and Prevention and the World Health Organization, is not actually safe, according to a study recently published in the

New England Journal of Medicine. The study found that any level of blood lead concentration negatively affects children’s IQ... Read more

Maine made history in June, when, by passing “An Act to Provide Leadership in Addressing the Threat of Climate Change,” it became the nation’s

first state to legislate a reduction in carbon dioxide emissions. Maine plans to reduce emissions to 1990 levels by 2010, 10% below 1990 levels by 2020, and 75–80% below 1990 levels over the long... Read more

In the process of designing a large open-plan office building for a corporate client, Gensler’s designers suggested taking a look at a smaller project they recently completed for the same client. In the earlier project, they found that partially closed-in “teaming areas” they had created in the corners were rarely used because they didn’t offer... Read more

The

use of ground granulated blast-furnace slag in cement reached a record 22.9 million metric tons (25.2 million tons) in 2002, up 22% from 2001, according to the Slag Cement Association (SCA). Blast-furnace slag, a mixture of nonmetallic minerals, is created in the reduction of iron ore to iron. According to SCA, using slag cement in... Read more

The

California Energy Commission (CEC) may no longer collect information about the energy efficiency of air conditioners, heat pumps, water heaters, and furnaces, the U.S. District Court for the Eastern District of California ruled in June. The case was filed by the Air-Conditioning and Refrigeration Institute, the Association of Home... Read more

... Read more

Over the past year, three companies have begun marketing a low-density, open-cell polyurethane foam insulation made, in part, from soybeans. By far the best organized and established of these is BioBased Systems of Spring Valley, Illinois. Experienced users tell EBN that BioBase 501 works just as well as its petrochemical-based competitors, and... Read more

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Greening Rooftops for Sustainable Communities, the first national conference on green roofs, was held May 29–30 in Chicago, drawing more than 500... Read more

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The Construction Specifications Institute (CSI) awarded this year’s

Environmental Sensitivity Awards to two architecture firms that specialize in... Read more

EBN

Vol. 11, No. 10 and

Vol. 6, No. 8). We recently discovered another such product—made by Bricor Analytical, Inc. in Colorado Springs, Colorado. While quite different from the ETL products technologically, Bricor... Read more

The North American Board of Certified Energy Practitioners (NABCEP) has developed a voluntary

certification program for installers of photovoltaic (PV) systems. NABCEP plans to hold its first exam on October 25; in order to participate, candidates must complete their applications by July 31. For details or to apply for certification,... Read more

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The Cool Roof Rating Council (CRRC), a member-based, nonprofit, educational organization, now has over 100 listings in its

Rated Products... Read more

, executive director of Red Feather Development Group, has been named

Greatest American Hometown Hero in the first

Volvo for Life Awards. Struck by reports of poverty on America’s Indian reservations, Young founded the Red Feather Development Group in 1995 to teach Native American communities to construct energy-... Read more

Sunlight can convert triclosan, a disinfectant used in antibacterial and antimicrobial soaps and other products, into dioxin, according to a paper in the May 30, 2003 issue of the

Journal of Photochemistry and Photobiology A: Chemistry. Photodegradation of triclosan in the absence of chlorine can produce a relatively benign form of... Read more

The Emerging Green Builders subcommittee of the USGBC is steering the

first annual USGBC Design Competition. Participation is limited to current students of all disciplines and graduates with no more than three years’ experience in the industry. Winners will be announced at USGBC’s Greenbuild conference this November. Watch for details... Read more

After surveying its member companies, the North American Insulation Manufacturers Association estimates that the industry used nearly 2 billion pounds (900 million kg) of

recycled glass and blast-furnace slag in the manufacture of fiberglass and slag-wool insulation last year. Of that total, 58% was glass cullet and 42% was slag. Since... Read more