气候变化领域集成服务门户(CCPortal): The effort factor: Evaluating the increasing marginal impact of resource extraction over time

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DOI	10.1016/j.gloenvcha.2014.02.001
	The effort factor: Evaluating the increasing marginal impact of resource extraction over time
	Davidson D.J.; Andrews J.; Pauly D.
发表日期	2014
ISSN	0959-3780
卷号	25 期号:1
英文摘要	Concern for the increasing impact of human activities on Earth's ecosystems has generated a growing effort to monitor those impacts and measure the success, if any, of mitigation measures. This contribution argues that ecological impact assessments that tend to rely primarily on the volume of natural resources produced and subsequently consumed overlook the degree to which ecological impact can vary significantly independently of production volumes, due to the varying impact that results from production effort. Production effort, in turn, is directly linked to the quality of raw materials, which inevitably tends to decrease over time. As a result, unless technological improvements were able to compensate for the resource quality decline indefinitely, we face a future of increasing marginal ecological impact over time. This is demonstrated here based on three resource extraction systems, coal mining in the UK, grain production in China, and global marine fisheries. © 2014 Elsevier Ltd.
英文关键词	Ecological impact analysis; IPAT; Natural resource depletion
语种	英语
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/117796
作者单位	Department of Resource Economics and Environmental Sociology, University of Alberta, Canada; Fisheries Centre, University of British Columbia, Canada
推荐引用方式 GB/T 7714	Davidson D.J.,Andrews J.,Pauly D.. The effort factor: Evaluating the increasing marginal impact of resource extraction over time[J],2014,25(1).
APA	Davidson D.J.,Andrews J.,&Pauly D..(2014).The effort factor: Evaluating the increasing marginal impact of resource extraction over time.Global Environmental Change,25(1).
MLA	Davidson D.J.,et al."The effort factor: Evaluating the increasing marginal impact of resource extraction over time".Global Environmental Change 25.1(2014).