The number of people living in cities could increase to 80% of the total population by 2100. That could require more new construction between now and 2050 than all the construction done since the start of the industrial revolution.
The influx of urban dwellers could be accommodated in mid-rise buildings from 4 to 12 stories tall made out of wood, according to lead author of a study by Potsdam Institute for Climate Impact Research. Wood is a renewable resource that usually carries the lowest carbon footprint of any comparable, first-time use building material, the study asserted.
Moreover, carbon stored in wood, absorbed from atmospheric CO2 via photosynthesis, makes the material a long-term carbon sink. To accommodate demand for urban housing, though, a lot of wood would be needed. Wooden cities of the future would require a 149-million hectare increase in tree plantations by 2100 and more harvesting from unprotected natural forests.
One problem, some environmentalists say, is that tree plantations have less biodiversity than natural forests. Some green advocates are also critical of harvesting more wood from diverse natural forests.
Natural, biodiverse forests are more resilient to drought, fires and disease, one environmental advocate noted, and pointed out that numerous tree plantations have burned this year as record temperatures and drought impacted many areas across the globe.
Related Stories
| Jan 4, 2011
California buildings: now even more efficient
New buildings in California must now be more sustainable under the state’s Green Building Standards Code, which took effect with the new year. CALGreen, the first statewide green building code in the country, requires new buildings to be more energy efficient, use less water, and emit fewer pollutants, among many other requirements. And they have the potential to affect LEED ratings.
| Jan 4, 2011
Grubb & Ellis predicts commercial real estate recovery
Grubb & Ellis Company, a leading real estate services and investment firm, released its 2011 Real Estate Forecast, which foresees the start of a slow recovery in the leasing market for all property types in the coming year.
| Jan 4, 2011
Furniture Sustainability Standard - Approved by ANSI and Released for Distribution
BIFMA International recently announced formal American National Standards Institute (ANSI) approval and release of the ANSI/BIFMA e3-2010 Furniture Sustainability Standard. The e3 standard represents a structured methodology to evaluate the "sustainable" attributes of furniture products and constitutes the technical criteria of the level product certification program.
| Dec 20, 2010
Architect Adrian D. Smith on zero-energy cities, new technologies, and high density.
Adrian D. Smith, FAIA, RIBA, is co-founder (with Gordon Gill) of Adrian Smith + Gordon Gill Architecture, Chicago. Previously, he was a design partner in the Chicago office of Skidmore, Owings & Merrill (1980-2003) and a consulting design partner from 2004 to 2006. His landmark structures include the Jin Mao Tower (Shanghai), Rowes Wharf (Boston), and Burj Khalifa (Dubai, U.A.E.), the world’s tallest structure. He recently collaborated with Gordon Gill to design the world’s first net-zero-energy skyscraper, Pearl River Tower, now nearing completion in Guangzhou, China. This account is based on his recent remarks at the Illinois Institute of Technology.
| Dec 17, 2010
Gemstone-inspired design earns India’s first LEED Gold for a hotel
The Park Hotel Hyderabad in Hyderabad, India, was designed by Skidmore, Owings & Merrill to combine inspirations from the region’s jewelry-making traditions with sustainable elements.
| Dec 17, 2010
Sam Houston State arts programs expand into new performance center
Theater, music, and dance programs at Sam Houston State University have a new venue in the 101,945-sf, $38.5 million James and Nancy Gaertner Performing Arts Center. WHR Architects, Houston, designed the new center to connect two existing buildings at the Huntsville, Texas, campus.
| Dec 17, 2010
Subway entrance designed to exude Hollywood charm
The Hollywood/Vine Metro portal and public plaza in Los Angeles provides an entrance to the Red Line subway and the W Hollywood Hotel. Local architect Rios Clementi Hale Studio designed the portal and plaza to flow with the landmark theaters and plazas that surround it.
| Dec 17, 2010
New engineering building goes for net-zero energy
A new $90 million, 250,000-sf classroom and laboratory facility with a 450-seat auditorium for the College of Electrical and Computer Engineering at the University of Illinois at Urbana/Champaign is aiming for LEED Platinum.
| Dec 17, 2010
Toronto church converted for condos and shopping
Reserve Properties is transforming a 20th-century church into Bellefair Kew Beach Residences, a residential/retail complex in The Beach neighborhood of Toronto. Local architecture firm RAWdesign adapted the late Gothic-style church into a five-story condominium with 23 one- and two-bedroom units, including two-story penthouse suites. Six three-story townhouses also will be incorporated. The project will afford residents views of nearby Kew Gardens and Lake Ontario. One façade of the church was updated for retail shops.
| Dec 17, 2010
Cladding Do’s and Don’ts
A veteran structural engineer offers expert advice on how to avoid problems with stone cladding and glass/aluminum cladding systems.
