Scientists at the National Renewable Energy Laboratory (NREL) in Golden, Colorado, have achieved a new world record in thin-film photovoltaic cell efficiency. A record 17.7% “sunlight-to-electricity” efficiency was achieved with a compound semiconductor called copper indium gallium diselenide. While this efficiency is 60% higher than the... Read more

With great interest, I read your well-researched article on cork flooring in the January/February issue (Vol. 5, No. 1). As you concluded in the article, the harvest of commercial cork from the cork oak (

Quercus suber) tree is a relatively benign extraction that is one of nature’s best examples of a renewable, non-timber forest resource... Read more

A primary weakness of light-gauge steel framing for houses has been its severely compromised thermal integrity. In general, the simplest way to get a steel-framed wall to perform like a 2x6 wood-stud wall is to use 2x4 steel studs and add 2” (50 mm) of insulating foam sheathing. Now, researchers at Oak Ridge National Lab (ORNL) are seeking a... Read more

The world’s first independently certified, “well-managed” redwood lumber is now available from the Big Creek Lumber Company of Davenport, California in the Santa Cruz Mountains. Big Creek sells redwood, Monterrey pine, and Douglas fir from its 6,800 acres (2,750 ha) of forestland. The Scientific Certification Systems evaluation team called Big... Read more

U.S. greenhouse gas emissions continued to rise in 1994, totaling 1,666 million metric tonnes carbon equivalent according to the report

Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-1994 published by the U.S. Environmental Protection Agency, November 1995 (this figure does not include the net effect of carbon “sinks” in... Read more

The Smart Wood Program of the New York City-based Rainforest Alliance recently announced a series of new partnerships and initiatives that should help make certification available to a wider range of forestry programs. In the Northeast, Smart Wood has teamed up with the National Wildlife Federation (NWF). As a member of the emerging Smart Wood... Read more

When homebuilder Barbara Harwood stumbled across the quote for a new mechanical system for a grocery store owned by her husband, she knew that the loads were out of line. The quote called for a system... Read more

In an exciting breakthrough for energy conservation measures in residential development, Roger Perry has announced that all homes in his Meadowmount development in Chapel Hill, North Carolina will be built to guidelines from the Alternative Energy Corporation (AEC). The project will contain 715 houses, and total of 1298 residential units. AEC’... Read more

Now that we at

EBN have finally the caught up with the trends and have created our own website, we can slow down long enough to ask: Why are we doing this, anyway? Didn’t we have enough to do just publishing on paper? At least the courts have struck down Internet censorship, so we don’t have to worry about getting in trouble for... Read more

Christine Hammer, editor.

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Greenclips. Every two weeks, between six and ten one-paragraph summaries of articles, gleaned from over 60 different publications,... Read more

The April 1996 issue of the well-regarded British publication

Green Building Digest reports that Malaysia—one of the world’s largest plywood exporters—now stamps all of its plywood with the label “Sustainable Timber” even though, according to the Malaysian government, the country will be a net timber importer by the end of the century... Read more

I’ve worked the last 25 years on developing parts of what is now called “Eco-design,” under the belief that healthier buildings, lower energy use, and less ecological impact were important. This was only to discover recently that all this time I was still looking at things in isolation rather in their ecological interconnectedness!

A plethora of stay-in-place insulating concrete form building systems have been introduced in the last decade. Among these is the Rastra system—a European technology that is now getting established in the western United States.

The Rastra system uses 100% recycled expanded polystyrene (EPS) foam, ground into small beads and mixed with... Read more

Using the natural cycles of plant and animal life instead of chemicals and mechanical systems to process wastewater holds a great deal of attraction. Conventional sewage treatment systems already rely on bacteria to do much of the work, but these organisms perform very restricted functions within a system that is generally mechanistic.... Read more

ICI Paints of Cleveland, Ohio has expanded its Glidden line of zero-VOC paints with the recent availability of a full color line in the Lifemaster premium interior and Decra-Shield® exterior paints. With the introduction of solvent-free colorants, all colors are now available in VOC-free formulations. In the past, while VOCs had been eliminated... Read more

Initial construction work will focus on infrastructure, including roads and an innovative ecological wastewater... Read more

The First Annual National Environmental Sensitivity Award from the Construction Specification Institute was awarded to BSW International of Tulsa, Oklahoma. BSW is known for catering to corporate clients, such as Wal-Mart, with repetitive building programs. BSW’s Green Team prepared the winning entry in the form of their Environmental... Read more

James McElvenny has left his long-time position as assistant vice president of research and development with Wood Recycling Incorporated of Woburn, Massachusetts to become Director of Recycling Projects for the Wood Products Division of the J.M. Huber Company (508/524-8804). In his new position McElvenny will continue his ongoing efforts to... Read more

The eco-shake™ shingles have heavily textured wood grain to mimic the look of wood shakes. They are 22 inches (250 mm) in length, packaged in random widths of 5, 7, and 12... Read more