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Vulnerability Assessments In Support Of The Climate Ready Estuaries Program: A Novel Approach Using Expert Judgement, Volume Ii: Results For The Massachusetts Bays Program (Final Report)

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As part of the Climate Ready Estuaries (CRE) program, the Global Change Research Program (GCRP) in the National Center for Environmental Assessment, Office of Research and Development at the U.S. Environmental Protection Agency has prepared a report exploring a new methodology for climate change vulnerability assessments using Massachusetts Bays’ salt marsh ecosystem as a demonstration.
Estuarine ecosystems are highly vulnerable to climate-related changes in precipitation, hydrology, and sea level rise. As part of the CRE pilot program, GCRP collaborated with the San Francisco Estuary Partnership (SFEP) and the Massachusetts Bays Program (MBP) on ecological vulnerability assessments based on an expert elicitation exercise in a workshop setting. The results have been published as a series, with Volume I presenting the results for SFEP and Volume II presenting the results for MBP. For this project, an exercise was designed to elicit judgments from experts regarding climate change effects on two ecosystem processes for each pilot assessment: sediment retention and community interactions. The exercise is based on a novel application of expert elicitation (a process for obtaining the judgments of groups of experts to characterize their collective knowledge about ecological questions of interest). It was implemented during a two-day workshop using groups of seven expert participants for each ecosystem process examined.

During the workshop, the experts developed ecosystem models and used a coding scheme to characterize (1) relationships among key physical and ecological variables that regulate ecosystem processes, (2) relative sensitivities of these relationships under current and future climate change scenarios, (3) degree of confidence about these relationships, and (4) implications for management. This report shows how climate-sensitive pathways can be identified and linked to management options for adaptation to climate change. Adaptation refers to the ways in which management actions can be modified to reduce the negative impacts of climate change. The results of this study are designed to support MBP’s adaptation planning efforts as well as those of other estuary managers.

Impact/Purpose

The aim is to synthesize place-based information on the potential implications of climate change for key ecosystem processes in each estuary, in a form that will enable managers to undertake management adaptation planning.

Status

Volume I for the San Francisco Estuary Partnership has also been published concurrently.

A third volume, Lessons Learned, will be developed subsequent to publication of the first two volumes. This Volume III will compare the results of the two parallel assessments, explore synthetic conclusions, analyze the utility of the methodology for future use, and discuss potential improvements.

Citation

U.S. EPA. Vulnerability Assessments In Support Of The Climate Ready Estuaries Program: A Novel Approach Using Expert Judgement, Volume Ii: Results For The Massachusetts Bays Program (Final Report). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-11/058Fb, 2012.

History/Chronology

Date Description
01- Oct 2008 Stakeholder “kickoff” workshop, Boston
02- Apr 2010 Expert elicitation workshop, Boston
04- Sep 2011 EPA released the External Review Draft (MBP) report for a 30-day public comment and review perod.
05- Mar 2012 Final MBP report released.

Download(s)

This document has been reviewed in accordance with U.S. Environmental Protection Agency policy and approved for publication. Mention of trade names or commercial products does not constitute endorsement or recommendation for use.

  • Vulnerability Assessments in Supportof the Climate Ready Estuaries Program: A Novel Approach Using Expert Judgment Volume II: Results for the Massachusetts Bays Program (EPA/600/R-11/058Fb) (PDF)  (157  pp, 1.9 MB, about PDF)

Related Link(s)

  • Vulnerability Assessments in Support of the Climate Ready Estuaries Program: A Novel Approach Using Expert Judgement, Volume II: Results for the Massachusetts Bays Program (External Review Draft)
  • Vulnerability Assessments In Support Of The Climate Ready Estuaries Program: A Novel Approach Using Expert Judgment, Volume I: Results For The San Francisco Estuary Partnership (Final Report)

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Last updated on May 13, 2016
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