2008 An Environmental AQrossroads

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Global warming clouds our future. Pollution degrades our air, soil and water. Environmental toxins compromise the health of our children. Misuse threatens the sustainability of our forests, fisheries, wetlands and coasts, and the health of species that live there.

But there is reason for hope.

Through sound science and policy research, we're finding answers to these problems. Airborne lead and acid rain have been dramatically reduced. Industrial water pollution has decreased. Habitats are being preserved.

Faculty members from the Nicholas School of the Environment and Earth Sciences at Duke University are part of the effort to help find these answers and establish new environmental practices and policies to safeguard our natural resources for generations to come.

To contact our experts or learn more about what we're doing in states across the nation, click on the state you're interested in.

Air Quality
The Bay State faces serious health risks from hazardous air pollutants. More than 1.3 million people in the commonwealth live in areas where the cancer risk associated with hazard air pollutants exceeds 1 in 1,000. Citizens in Suffolk, Norfolk and Middlesex counties have the highest added risks of cancer. Smog and ozone exacerbate allergies, asthma and other respiratory health problems not only in the Boston metropolitan area but also in smaller western Massachusetts communities like Springfield.

Lori Snyder Bennear is an environmental economist who specializes in evaluating the effectiveness of environmental regulations.
tel: (919) 613-8083 e: lori.bennear@duke.edu

Research focus: Bennear's areas of specialization are environmental and natural resource economics, applied microeconomics and empirical methods. Her research focuses on estimating the effect of different regulatory innovations on measures of facility-level environmental performance, such as pollution levels, chemical use, and technology choice.

Her recent work has focused on measuring the effectiveness of management-based regulations, which require each regulated entity to develop its own internal rules and initiates to achieve reductions in pollution, as well as the effectiveness of regulations that mandate public reporting of toxic emissions.

Prasad Kasibhatla is an expert on the chemistry of air pollution and on regional-scale ozone and aerosol modeling.
tel: (919) 613-8075: e: psk9@duke.edu

Research focus: Atmospheric chemistry. Regional and global modeling. Atmospheric chemical data analysis. Natural and anthropogenic impacts on the chemical composition of the atmosphere. Acid Rain

Kasibhatla also studies the impact of nitrogen oxides, ozone, sulphur compounds and other airborne contaminants from ship emissions on air quality over large bodies of water.

In a recent article in Science, he examined the possibility that smoke from El Nino-associated wildfires may be an undocumented factor in greenhouse gas production and air quality problems in North America.

William Schlesinger studies the effects of elevated CO₂ levels on the environment. His research does not reinforce the optimism of some policymakers who believe trees and soils can naturally absorb the increasing amounts of carbon dioxide produced by industrial or vehicular emissions.
tel: (919) 613-8004: e:schlesin@duke.edu

Research focus: Global environmental change, focusing on chemical changes in the environment, especially soils, that relate to changes in global climate and desertification.

Schlesinger’s research rebuts the hypothesis that trees and soils will be able to absorb ever-increasing amounts of carbon dioxide emissions in the air. Instead, he says, a better strategy would be to employ underground carbon sequestration. “It should be relatively easy to capture the CO₂ emitted from point-sources, such as coal-fired power plants, and inject it into the Earth's crust, where it can react with rock materials,” he says. “This would be easier to verify and more permanent than storage in trees and soils, which are subject to human disruptions like forest fires and cultivation. Several analyses suggest that we could use deep injection to capture a large fraction of the CO₂ emitted from electric power plants, which now account for about one-third of our nation's total emissions.”

David Schwartz focuses on the genetic and biological determinants of environmental and occupational lung disease. He is Walter Kempner Professor of Medicine and Chief, Division of Pulmonary and Critical Care Medicine, at Duke University Medical Center and holds a joint appointment at the Nicholas School.
tel: (919) 668-0380 : e: david.schwartz@duke.edu

Research focus: Genetic and biological determinants of environmental and occupational lung disease. Pathophysiology and biology of asbestos induced lung disease, institial lung disease, environmental airway disease and innate immunity.