Newsbriefs

In response to ongoing environmental concerns with refrigerants such as HCFCs and HFCs, a naturally occurring fluid may be making a comeback:

carbon dioxide. Although CO2 is the principal greenhouse gas, compared to most other refrigerants on a per-molecule basis it is extremely benign. According to the July 14, 2000 issue of... Read more

On June 30, 2000 two dozen representatives of various design-related organizations (joined by deans from some of the nation’s leading architecture schools via video teleconference) met at the World Resources Institute in Washington, D.C. to discuss

sustainability in architectural education. The event was organized by The American... Read more

Fiber-Optic Daylighting

The next-generation daylight-driven fiber-optic fixture is not yet on the market, but it is already garnering honors, including a “Groundbreaking Technology” award fromBuilder magazine. Similar in function to the Himawari (see

EBN

Vol. 8, No. 10), this new device is designed to be much more... Read more

The Green Skyscraper:

by Ken Yeang, 1999. Prestel Verlag, Munich. Paperback, 304 pages, $29.95

The challenges presented by Ken Yeang in

The Green Skyscraper start right with the cover shot—an arresting model of the Tokyo Nara Building revealing several floors of skyscraper devoted to gardens and a soft, sculptured form—and... Read more

Lighter AAC from Matrix

Matrix PAAC, LP (formerly Hebel Southeast), makers of autoclaved aerated concrete (AAC) block, have introduced the AAC-2.5LT. The AAC-2.5LT has the same dimensions as the standard 2.5, but is 23% less dense. Even though the block is light enough to reduce shipping costs on a full load, it is still suitable for structural... Read more

Adapting to a Greenhouse World

Now that any lingering doubts about the reality of human-generated global climate change are disappearing (see news story, page 5), I’m faced with a sobering reality check.

I’ve been harboring this illusion that once the doubts were adequately addressed, the world would wake up and take real action to... Read more

There is a compelling elegance in using the earth’s relatively constant temperatures as a source and sink for heat. Indeed, ground-source heat pumps can be a highly efficient space conditioning option and, although their overall market share is very low, they are increasingly popular in the many dozens of model green homes and light commercial... Read more

Sydney Olympics Walk the Talk

The Olympic Games being held later this summer in Sydney, Australia have gone further than any other modern Olympics in addressing environmental considerations—due largely to a unique collaboration.

In the early 1990s, Greenpeace International head Paul Gilding participated with environmental consulting... Read more

LEED in Seattle, and an Eleventh-Hour Change

I’d like to thank you for publishing such an excellent article on the LEED™ Rating System (EBN

Vol. 9, No. 6). Not only does it provide a helpful snapshot of the system’s content, but it also pointed out some of the history, challenges, and unresolved issues in the system. I need to provide a... Read more

New Energy Efficiency Bill Is Performance-Based

On June 13, Senator Bob Smith (Republican–NH) introduced the Energy Efficient Buildings Incentives Act (S. 2718) to Congress. The bill would provide tax deductions for the following residential and commercial energy efficiency improvements: whole-building performance, PV systems, certified solar... Read more

Jim Quinn

, President and CEO of Collins Companies, has announced plans to retire this fall. Under Quinn’s leadership, Collins became national leaders in Forest Stewardship Council-accredited certification of their forest lands, which include areas in northern California, southern Oregon, and (as Kane Hardwood) Pennsylvania. Quinn will be... Read more

Draft Report Predicts Climate Change Impacts for U.S. by Region

On June 12, 2000 the National Science Foundation released its

National Assessment Synthesis Report for a 60-day comment period. This report is the culmination of a research program initiated in 1990 by the Global Change Research Act. Included in it are the results of... Read more

Plum Creek Timber Company

, based in Seattle, announced on July 18 an agreement to acquire

The Timber Company—the division of Georgia-Pacific that has owned and managed all 4.4 million acres (1.8 million ha) of G-P’s timberland. The combined company, with 7.9 million acres (3.2 million ha), will be the second-largest private timberland... Read more

Honeywell TranStar Transformer Offers Significant Savings

“Exciting transformers” might seem like an oxymoron, but Honeywell has one for you—the new dry-type, ultra-low-loss TranStar™. The iron or steel core in conventional transformers has been replaced in the TranStar by a highly efficient MetGlas® amorphous metal core.

The TranStar... Read more

Recycling Asphalt Roofing Shingles

Each year, about 11 million tons (11.2 tonnes) of asphalt roofing shingle waste is generated in the U.S.—7 to 10 million tons (7.1 to 10.2 tonnes) in tear-off and 1 million in manufacturer scrap.

Nearly two-thirds of all roofs, both new and existing, are clad in asphalt shingles. The potential uses of... Read more

Christopher Gribbs

has left his longtime post as The American Institute of Architects’ staff member responsible for the Committee on the Environment (COTE), for a position with broader authority and more growth potential as Director of Convention Programs for the Institute. At a time when many AIA Professional Interest Areas struggled to get... Read more

Maryland has adopted a Consumer Benefits Act in May that offers tax credits to employers who provide staff with

incentives not to commute by car—such as subsidizing public transit or providing a cash benefit instead of free parking.

Dioxin: Down and Up

An EPA assessment scheduled for release in June will conclude that dioxin is a human carcinogen, according to a May 16 article in the

Washington Post. While dioxin emissions are way down from peak levels in the 1970s, reflecting the impact of a series of regulations on dioxin-emitting industries such as incinerators... Read more

Perspective: Green Building Tax Credits? No, Thanks!

Call me grumpy, but I’m against this new generation of tax credits for green buildings and renewable energy systems.

Tax credit legislation supporting green buildings was recently signed into law in New York (see EBN

Vol. 9, No. 5), and the push for similar legislation seems... Read more

Following discovery of trace amounts of

perfluorooctanyl-based chemicals in water supplies and in humans, 3M Company announced that it is phasing out products that use these chemicals, including its Scotchguard™ anti-soil coating for carpets and other materials. These products represent about 2% of the company’s $16 billion in annual... Read more