When Philips Lighting Company first introduced its Alto technology in 1995, the average amount of mercury in a four-foot (1.2 m) T-8 Alto fluorescent lamp was 14 mg. By encapsulating the mercury and creating a chemical barrier coating to prevent absorption of the mercury by the phosphor coating, Philips was able to lower the amount of mercury... Read more

At its annual conference in New York in July 2007, the Building Owners and Managers Association (BOMA) announced a seven-point energy savings challenge for its more than 16,500 members. The challenge calls for BOMA members to decrease energy consumption in existing buildings by 30% across their portfolios by 2012 and benchmark every building’s... Read more

The method provides the first... Read more

Developers and builders in Babylon, New York, are preparing to register their buildings for LEED certification to comply with a 2006 local law that goes into effect in December 2007. The law requires all new commercial buildings larger than 4,000 ft2 (400 m2) to achieve at least a LEED Certified rating. In addition, projects applying for... Read more

Ground-source heat pumps (GSHPs), often called “geothermal heat pumps,” exploit the relatively stable temperatures found just 5 feet (1.5 m) or more below the surface, either depositing or extracting low-intensity heat. Heat pumps—whether ground-source or air-source—are basically air conditioners that can be run in reverse to provide heating as... Read more

McDonough Braungart Design Chemistry (MDBC) has released a draft of the version two criteria for its Cradle to Cradle (C2C) product certification program. The most significant changes to C2C, which certifies an array of consumer and building products based on MBDC’s environmental philosophy, are a new “Basic” level of certification and... Read more

In Alex Wilson’s editorial in the June 2007 issue [

EBN Vol. 16, No. 6], he was careful to point out that “the

heat source in nuclear power plants does not emit greenhouse gases” (my emphasis). This simplification distorts the true emissions picture, as shown in an analysis performed by Jan Willem Storm van Leeuwen and Philip... Read more

A report released in June 2007 details plans to move the U.S. House of Representatives to carbon-neutral operation by the end of 2008, to reduce energy consumption in House facilities by 50% from 2006 levels by 2017, and to “make House operations a model of sustainability.” The initiative, headed by Speaker Nancy Pelosi (D–CA) and Majority... Read more

The Royal Institute of British Architects USA (RIBA–USA) has announced the winners of its international design competition “Building a Sustainable World: Life in the Balance.” The competition asked entrants to conceive self-sustaining communities that respond to the challenges of global climate change (see

EBN

Vol. 15, No. 9).... Read more

EBN

Vol. 13, No. 8] with new data, Lisa Fay Matthiessen and Peter Morris of Davis Langdon still come to the same conclusion. There are so many huge cost factors in construction that it is not possible to detect any statistically significant difference between... Read more

The U.S. Green Building Council (USGBC) announced in July 2007 that it had reached a total of 10,000 member companies, signaling large growth in the previous year. The 2007 figure represents a growth of 2,800 members over 2006 numbers; USGBC gained a total of 4,800 members between 2002 and 2006. Member companies include architects,... Read more