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Estimating the health effects of greenhouse gas mitigation strategies: addressing parametric, model, and valuation challenges.

Abstract：

BACKGROUND:Policy decisions regarding climate change mitigation are increasingly incorporating the beneficial and adverse health impacts of greenhouse gas emission reduction strategies. Studies of such co-benefits and co-harms involve modeling approaches requiring a range of analytic decisions that affect the model output. OBJECTIVE:Our objective was to assess analytic decisions regarding model framework, structure, choice of parameters, and handling of uncertainty when modeling health co-benefits, and to make recommendations for improvements that could increase policy uptake. METHODS:We describe the assumptions and analytic decisions underlying models of mitigation co-benefits, examining their effects on modeling outputs, and consider tools for quantifying uncertainty. DISCUSSION:There is considerable variation in approaches to valuation metrics, discounting methods, uncertainty characterization and propagation, and assessment of low-probability/high-impact events. There is also variable inclusion of adverse impacts of mitigation policies, and limited extension of modeling domains to include implementation considerations. Going forward, co-benefits modeling efforts should be carried out in collaboration with policy makers; these efforts should include the full range of positive and negative impacts and critical uncertainties, as well as a range of discount rates, and should explicitly characterize uncertainty. We make recommendations to improve the rigor and consistency of modeling of health co-benefits. CONCLUSION:Modeling health co-benefits requires systematic consideration of the suitability of model assumptions, of what should be included and excluded from the model framework, and how uncertainty should be treated. Increased attention to these and other analytic decisions has the potential to increase the policy relevance and application of co-benefits modeling studies, potentially helping policy makers to maximize mitigation potential while simultaneously improving health.

journal_name

Environ Health Perspect

journal_title

Environmental health perspectives

authors

Remais JV,Hess JJ,Ebi KL,Markandya A,Balbus JM,Wilkinson P,Haines A,Chalabi Z

doi

10.1289/ehp.1306744

subject

Has Abstract

pub_date

2014-05-01 00:00:00

pages

447-55

issue

eissn

0091-6765

issn

1552-9924

journal_volume

122

pub_type

杂志文章

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Estimating the health effects of greenhouse gas mitigation strategies: addressing parametric, model, and valuation challenges.