Gloria E . Helfand

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Yard-scale landscape designs can influence environmental quality through effects on habitat, stormwater runoff, and water uality. Native plant gardens may have ecological benefits, and previous research has shown that yards using these plants an be designed in ways that people find attractive. This study examines whether people are willing to pay more for(More)
Previous research suggests that the elasticity of light-duty motor vehicle travel with respect to fuel cost, known as the “rebound effect,” is modest in size and probably declined in magnitude between the 1960s and the late 1990s. However, turmoil in energy markets during the early 2000s has raised new questions about the stability of this elasticity. Using(More)
i ACKNOWLEDGMENTS This report is one in a series that documents an analysis of the full social-cost of motor-vehicle use in the United States. The series is entitled The Annualized Social Cost of Motor-Vehicle Use in the United States, based on 1990-1991 Data. Support for the social-cost analysis was provided by Pew Charitable Trusts, the Federal Highway(More)
This study estimates the benefits to agriculture and human health of reducing ozone in the San Joaquin Valley of California, and the costs of ozone control. The San Joaquin Valley's highly valued crops suffer from high ozone levels. Federal and state primary ozone standards are based on health effects, not effects on other sectors, and do not consider costs(More)
The effects of ozone air pollution on the agricultural sector are an important environmental challenge facing policy makers. Most studies of the economic impact of air pollution on agriculture have found that a 25% reduction in ambient ozone would provide benefits of at least $1–2billion annually in the United States. This paper extends existing research by(More)
BACKGROUND Quantifying the benefits of reducing hazardous air pollutants (HAPs, or air toxics) has been limited by gaps in toxicological data, uncertainties in extrapolating results from high-dose animal experiments to estimate human effects at lower doses, limited ambient and personal exposure monitoring data, and insufficient economic research to support(More)
Concrete infrastructure systems require large capital investments and resource flows to construct and maintain. An integrated life cycle assessment and cost model was developed to evaluate infrastructure sustainability, and compare alternative materials and designs using environmental, economic and social indicators. The model is applied to two alternative(More)
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