Journal
GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS
Volume 17, Issue 3-4, Pages 397-407Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.gloenvcha.2007.05.006
Keywords
cost-benefit analysis; managed realignment; coastal zone management; ecosystem services; flood defence
Categories
Funding
- Economic and Social Research Council [RES-545-28-5001] Funding Source: researchfish
Ask authors/readers for more resources
European coasts are coming under increasing threat as a result of climate change from erosion and flooding. While coastal defences such as sea walls have been constructed since Roman times to protect human settlements from the sea, it is now increasingly recognised that these defences are unsustainable. The security provided by 'hard' engineered defences has encouraged development on the coast, and the defences themselves have led to the loss of intertidal habitat and the natural protection it provides. An alternative to maintaining 'hard' defences (hold-the-line) to protect land from increasing sea levels is managed realignment, where the engineered defences are deliberately breached. By allowing the coastline to recede to a new line of defence further inland, intertidal habitat is created providing natural protection from flooding and erosion. The study evaluates the economic efficiency-using cost-benefit analysis-of various managed realignment scenarios compared to a strategy of holding-the-line within the Humber estuary in North-east England. The results of this analysis show that managed realignment can be more economically efficient than holding-the-line over a sufficiently long time period-generally greater than 25 years. Sensitivity analysis demonstrates that results are more sensitive to the amount and value of intertidal habitat generated than they are to the amount and value of carbon stored by this habitat. Cost-benefit analysis is viewed as one component of a wider policy appraisal process within integrated coastal management. (C) 2007 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available