气候变化领域集成服务门户(CCPortal): Why win-wins are rare in complex environmental management

CCPortal

DOI	10.1038/s41893-022-00866-z
	Why win-wins are rare in complex environmental management
	Hegwood, Margaret; Langendorf, Ryan E.; Burgess, Matthew G.
发表日期	2022
ISSN	2398-9629
起始页码	674
结束页码	680
卷号	5 期号:8 页码:7
英文摘要	High-profile modelling studies often project that large-scale win-win solutions are widely available, but practitioners are often sceptical of win-win narratives, due to real-world complexity. Here we bridge this divide by showing mathematically why complexity makes win-wins elusive. We provide a general proof that increasing the number of objectives, the number of stakeholders or the number of constraints decreases the availability of win-win outcomes (here meaning Pareto improvements). We also show that a measure of tradeoff severity increases in the number of objectives. As the number of objectives approaches infinity, we show that this tradeoff severity measure approaches a limit unaffected by the curvature of the tradeoff surface. This is surprising because concave tradeoff-surface curvature results in less severe tradeoffs with fewer objectives. Our theory suggests that this difference gradually dissipates as objectives are added. In a meta-analysis, we show that 77% of empirically estimated two-objective tradeoff surfaces are concave. We then show how to approximately extrapolate our tradeoff severity measure to higher numbers of objectives, starting from estimated tradeoffs between fewer objectives. Our results provide modellers with precise intuition into practitioners' scepticism of win-win narratives and practitioners with guidance for assessing the implications of simple tradeoff models. Modelling studies suggest that large-scale win-win solutions are available, but practitioners confronted with real-world complexity are sceptical. This study shows that increasing the number of objectives, the number of stakeholders or the number of constraints decreases the availability of win-win outcomes.
学科领域	Green & Sustainable Science & Technology; Environmental Sciences; Environmental Studies
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS记录号	WOS:000780305100001
来源期刊	NATURE SUSTAINABILITY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272773
作者单位	University of Colorado System; University of Colorado Boulder; University of Colorado System; University of Colorado Boulder; University of Colorado System; University of Colorado Boulder
推荐引用方式 GB/T 7714	Hegwood, Margaret,Langendorf, Ryan E.,Burgess, Matthew G.. Why win-wins are rare in complex environmental management[J],2022,5(8):7.
APA	Hegwood, Margaret,Langendorf, Ryan E.,&Burgess, Matthew G..(2022).Why win-wins are rare in complex environmental management.NATURE SUSTAINABILITY,5(8),7.
MLA	Hegwood, Margaret,et al."Why win-wins are rare in complex environmental management".NATURE SUSTAINABILITY 5.8(2022):7.