Thomas Leschine

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More than 50 years of research, development, manufacture, and testing of nuclear weapons at Department of Energy (DOE) sites has left a legacy of on-site contamination that often spreads to surrounding areas. Despite substantial cleanup budgets in the last decade, the DOE's top-to-bottom review team concluded that relatively little actual cleanup has been(More)
The risk of oil spills is a major environmental issue in the siting of proposed coastal refineries, oil terminals, deepwater ports, and in the leasing of offshore lands for oil exploration and development. As with any kind of risk, oil spill risk assessment is inherently judgmental and no analytic method can eliminate the need for judgment. This paper(More)
N uclear power is re-emerging as a major part of the energy portfolios of a wide variety of nations. With over 50 reactors being built around the world today and over 100 more planned to come online in the next decade, many observers are proclaiming a “nuclear renaissance” ( 1). The success of a nuclear revival is dependent upon addressing a well-known set(More)
A spatially explicit linear, additive model was developed for quantifying site characteristics of riparian areas of the lower Cedar River, Washington, USA. The spatial complexity and distribution of combined habitat and anthropogenic landscape features were used to define habitat "indices" that indicate the relative quality of riparian habitats. Patches of(More)
Nuclear waste cleanup is a challenging and complex problem that requires both scientific analysis and dialogue among a variety of stakeholders. This article describes an effort to develop an online information system that supports this analytic-deliberative dialogue by integrating cleanup information for the Hanford Site, and making it more "transparent." A(More)
This report proposes a method for assessing resilience-building components in coastal social-ecological systems. Using the proposed model, the preferences of experts in Masan Bay (South Korea) and Puget Sound (USA) are compared. A total of 30 management objectives were determined and used to build a hierarchic tree designed using the principles of the(More)
T he Puget Sound Nearshore Partnership (PSNP) has developed a list of valued ecosystem components (VECs). The list of VECs is meant to represent a cross-section of organisms and physical structures that occupy and interact with the physical processes found in the near-shore. The VECs will help PSNP frame the symptoms of declining Puget Sound nearshore(More)
The U.S. Department of Energy's Columbia River Comprehensive Impact Assessment (CRCIA) was an ambitious attempt to direct its cleanup of the Hanford Nuclear Reservation toward the most significant risks to the Columbia River resulting from past plutonium production. DOE's approach was uncommonly open, including tribal, regulatory agency, and other Hanford(More)