The energy associated with urban sprawl including passenger and freight transport and the
construction and maintenance of low density, dispersed infrastructures.
The fact that many building products, especially wood intensive products, can serve as a carbon
sink reducing net CO
2
emissions should also be considered when assessing alternatives.
GHG emissions from the U.S. building sector have been increasing at about 2 percent per year since
1990, and the EIA forecasts that they will continue to increase at approximately 1.4 percent annually through
2025. Population and economic expansion are expected to increase the demand for energy related building
services, and the energy requirements of an expanded building stock. Since the GDP is forecast to grow much
faster (by 3 percent annually), the CO
2
intensity of the building sector (i.e., building related CO
2
emissions
divided by GDP) is expected to continue to decline according to this EIA forecast.
Just as CO
2
Figure 4
emissions from buildings
Energy Linked Emissions  
from Residential and
are forecasted to grow over
Commercial Buildings as a Percentage of Total U.S. Emissions 
time, so are other air
60
emissions. As Figure 4 shows,
50
47%
+
buildings are responsible for a
40
significant proportion of the
38%
energy linked U.S. emissions
30
of sulfur dioxide and nitrogen
20
23%
oxides; they also contribute to
10
12%
lead, fine particulates, carbon
7%
. Emissions from the Buildings Sector (%)
4%
0
3%
monoxide, and volatile organic
S
U.
compounds (VOCs). Measures
SO
CO
NO
Lead
PM 25
CO
VOCs
2
2
X
+
Sources: U.S. Environmental Protection Agency. 2000. National Air Pollutant Emissions Trends
that reduce CO
2
often have
Report, 1998, EPA 454/R 00 0002 March 2000. EPA, Washington, DC; and Energy Information
Agency. 2000. Emissions of Greenhouse Gases in the United States. DOE/EIA 0573(00). EIA,
the collateral benefit of
Washington, DC. 
reducing these pollutants.
8
+
Towards a Climate Friendly  
Built Environment
<





New Page 1








Home : About Us : Network : Services : Support : FAQ : Control Panel : Order Online : Sitemap : Contact : Terms Of Service

 

Our web partners:  Jsp Web Hosting  Unlimited Web Hosting  Cheapest Web Hosting  Java Web Hosting  Web Templates  Best Web Templates  Web Design Templates  Interland Web Hosting  Cheap Web Hosting  Filemaker Web Hosting  Tomcat Web Hosting  Quality Web Hosting  Best Web Hosting  Mac Web Hosting

 
 

Virtualwebstudio. Business web hosting division of Vision Web Hosting Inc. All rights reserved

Mac Friendly Web Hosting