The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has released the first public comment draft of its “Proposed Standard 189, Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings.” This standard, being developed in conjunction with the Illuminating Engineering... Read more

Nuclear power is increasingly being touted as a leading solution to global climate change. Nuclear energy proponents—and a growing number of environmentalists—correctly point out that nuclear fission, the heat source in nuclear power plants, does not emit greenhouse gases. Given the clear need to reduce our carbon dioxide emissions, nuclear... Read more

New European Union (EU) regulations of harmful chemicals have been toned down and made law. The final version of the Registration, Evaluation, and Authorization of Chemicals (REACH) bill requires that persistent, bioaccumulative, and toxic (PBT), and very persistent, very bioaccumulative (vPvB) chemicals manufactured in or imported into the EU... Read more

According to... Read more

Emissions of volatile organic compounds (VOCs) and other... Read more

Despite the increasing popularity of green building, research on high-performance building practices and technologies represents a tiny percentage of federally funded research. According to a report released in March 2007 by the Research Committee of the U.S. Green Building Council (USGBC), only 0.2% of federally funded research, an average of... Read more

Following a successful nine-month pilot program, a mercury-thermostat recycling program is being rolled out nationwide. Created by the independent nonprofit Product Stewardship Institute and the industry-owned nonprofit Thermostat Recycling Corporation, the program works with municipal hazardous waste collection programs to collect thermostats... Read more

Drywall comes in three primary product types. Paper-faced drywall remains by far the dominant product for finishing interior walls. It is inexpensive and easy to work with (cutting panels by scoring and snapping). Environmentally, the paper is typically 100% post-consumer recycled, the gypsum core can be derived from flue-gas-desulfurization (... Read more

The Athena Sustainable Materials Institute has released a new life-cycle assessment (LCA) tool for assemblies. The EcoCalculator for Assemblies draws on results from Athena’s Impact Estimator for Buildings to give instant LCA results for over 400 building assemblies, including those for walls, roofs, floors, and windows. Commissioned by the... Read more

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

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

Much has changed in the U.S. Green Building Council’s Technical Scientific Advisory Committee [TSAC] final report on PVC [see

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Vol. 16, No. 3]. In this round, TSAC expanded its analysis to account for life-cycle issues that traditional LCA (life-cycle analysis) tools often miss, such as disposal issues and occupational... 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

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

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

According to the American Public Transportation Association (APTA), Americans took more than 10 billion trips on local public transportation in 2006, reaching the highest level since 1957. Ridership was up 3% between the end of 2005 and the end of 2006, and up 28% in the decade since 1996. Over the last decade, the growth rate of public transit... Read more