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Issues in evaluation of ecosystem change in response to global change

机译：评估生态系统变化以应对全球变化的问题

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Uncertainty analysis of our integrated climate assessment model has revealed the importance of obtaining better market and non-market impacts. This paper provides a brief overview of: (i) the challenges inherent in modeling ecosystem dynamics; (ii) the problem of selecting an appropriate metric of change; and (iii) the thorny issue of how to place a monetary value on market and non-market impacts. We focus on two central issues in estimation of impacts: (i) before climate change, are the systems being impacted (both ecological and economic) in equilibrium; and (ii) how quickly do ecological and related economic systems adapt to change. In addition, we attempt to be comprehensive in laying out the magnitude of the challenge ahead.

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