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Linking Global and Local Scales: Design Guidelines for Dynamic Assessment

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science and decision-making through effective assessment processes ... Effects of geographic/economic scale on net gain (benefits minus costs) arising ... – PowerPoint PPT presentation

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Title: Linking Global and Local Scales: Design Guidelines for Dynamic Assessment


1
Linking Global and Local Scales Design
Guidelines for Dynamic Assessment Management
Processes
  • David W. Cash Susanne C. Moser Pre-doctoral
    Fellow Post-doctoral Fellow
  • cashdav_at_ksg.harvard.edu Suzanne_Moser_at_harvard.edu
  • Global Environmental Assessment Project
  • Harvard University
  • http//environment.harvard.edu/gea
  • Affiliate fellows of the CMU CIS-HDGC
  • April 30, 1999

2
Abstract
  • Assessors and policy makers increasingly
    recognize the importance of scale and cross-scale
    linkages, yet there is little systematic
    understanding of how these issues can effectively
    be addressed. Our research suggests that
    management of cross-scale environmental problems
    can be effectively supported by assessment and
    decision systems which
  • create or utilize existing boundary institutions
    to coordinate across levels
  • capitalize on scale-dependent comparative
    advantages
  • rely on adaptive processes

3
The Challenges
  • How to link...
  • global processes of climate and economic change
    to impacts and institutional economic responses
    at the local/regional scale, and vice versa
  • science and decision-making through effective
    assessment processes
  • institutions and individuals within science,
    assessment and decision-making across scale,
    space, and institutional boundaries

4
Scale-Related Challenges for Policy Relevant
Assessment
  • Avoiding scale mismatch
  • human ? biogeophysical systems
  • assessment ? management systems
  • Scale discordance (i.e. aligning management
    resolution and model resolution. SEE Figure 1.)
  • Accounting for cross-scale dynamics
  • in decision making
  • in information flows
  • in integrating decision making and information

5
Figure 1 - Scale-dependent distribution of impacts
ev
Expected Benefits-Costs
0
-ev
SITE Local Sub-national National
Regional Global
Effects of geographic/economic scale on net
gain (benefits minus costs) arising from effects
of environmental change on society.Adapted from
The Canada country study climate impacts and
adaptation, national summary for policy makers
6
Effective multi-scale assessment/management
systems...
  • create or use existing boundary institutions
    which support
  • multi-directional communication (e.g., users
    needs, producers products)
  • multi-level participation
  • information brokers/translators
  • (cont.)

7
Effective multi-scale assessment/management
systems...
  • capitalize on scale-dependent comparative
    advantages
  • technical capacity (e.g., modeling, data
    collection, etc.)
  • functional specialization (local tailoring of
    regulations, option creation, monitoring,
    enforcement, funding, education, etc.)
  • enabling decision making which decreases
    constraints and provides opportunities (economic,
    institutional, boundary crossing/translation,
    educational, etc.)
  • (cont.)

8
Effective multi-scale assessment/management
systems...
  • establish an adaptive process to
  • consciously commit to a long-term, iterative,
    learning process as science is advanced and
    decision-making experience is accumulated
  • accommodate and address both endogenous and
    exogenous technical, political and environmental
    changes (e.g., provide technical means of
    addressing scale discordances) through policy and
    assessment experimentation

9
Implications
  • Understanding cross-scale dynamics is critical to
    producing assessments that will successfully
    inform decision makers at different levels.
  • Create information/decision systems which
    consciously addresses cross-scale dynamics (e.g.,
    distributed assessment system.)
  • Adherence to either top-down or bottom-up
    approaches creates a false (and sometimes
    counterproductive) dichotomy.
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