An architecture of government adaptation programs is presented. Components include leadership, institutional organization, stakeholder involvement, climate change information, appropriate use of decision analysis techniques, explicit consideration of barriers to adaptation, funding for adaptation, technology development and diffusion, and adaptation research. This architecture is a useful heuristic for identifying, evaluating, and reevaluating the needs of decision makers as they improve management of climate-sensitive resources in a changing environment.

No abstract

Abstract. This study examines the failure of a small but significant element of U.S. chemical regulatory policy: the Endocrine Disruptor Screening Program (EDSP). A range of conditions are implicated in the failure of this program, but one condition, the scientific testing and regulation paradigm (STRP), seems particularly important and ties the failure of EDSP to the failure of other U.S. chemical regulatory programs. This paradigm is a group of assumptions that have driven pesticide (and other chemical) regulatory policy since World War II. This study investigates the relationship between STRP and the failure of EDSP, the potential efficacy of alternatives to this program, and one alternative that broke from this paradigm. Ultimately, this study suggests that we must revise the role of science in regulation in order to find effective alternatives to modern chemical regulatory policy.

We estimated the biological and economic impacts of climate change on freshwater fisheries in the United States (U.S.). Changes in stream temperatures, flows, and the spatial extent of suitable thermal habitats for fish guilds were modeled for the coterminous U.S. using a range of projected changes in temperature and precipitation caused by increased greenhouse gases (GHGs). Based on modeled shifts in available thermal habitat for fish Mitig Adapt Strateg Glob Change (2013) guilds, we estimated potential economic impacts associated with changes in freshwater recreational fishing using a national-scale economic model of recreational fishing behavior. In general, the spatial distribution of coldwater fisheries is projected to contract, being replaced by warm/cool water and high-thermally tolerant, lower recreational priority (i.e., "rough") fisheries. Changes in thermal habitat suitability become more pronounced under higher emissions scenarios and at later time periods. Under the highest GHG emissions scenario, by year 2100 habitat for coldwater fisheries is projected to decline by roughly 50 % and be largely confined to mountainous areas in the western U.S. and very limited areas of New England and the Appalachians. The economic model projects a decline in coldwater fishing days ranging from 1.25 million in 2030 to 6.42 million by 2100 and that the total present value of national economic losses to freshwater recreational fishing from 2009 to 2100 could range from $81 million to $6.4 billion, depending on the emissions scenario and the choice of discount rate.

No abstract