THE CONSIDERATION OF IMPACTS UPON THE AQUATIC ENVIRONMENT IN ENVIRONMENTAL IMPACT STATEMENTS IN ENGLAND AND WALES

2004 ◽  
Vol 06 (01) ◽  
pp. 19-49 ◽  
Author(s):  
EL-SAYED A. BADR ◽  
MATTHEW CASHMORE ◽  
DICK COBB

Considerable research has been undertaken on the quality of Environmental Impact Statements as an indicator, albeit superficial, of the effectiveness of Environmental Impact Assessment (EIA) practices. Yet there remains a paucity of empirical data on practices at the more detailed level (e.g., for the consideration of certain environmental components and stages of the EIA process), despite the importance of such analyses for the development of grounded measures for enhancing effectiveness. This study contributes to the development of a detailed empirical understanding of EIA practices by examining analyses of impacts upon the aquatic environment (Water Impact Assessment (WIA)) for a sample of 50 development proposals in England and Wales. The research results indicate that WIA practices have improved over time, but a significant proportion of assessments remain unsatisfactory, and the quality of core elements of WIA (e.g., the consideration of alternatives and impact prediction) is particularly problematic. It is suggested that changes made to the EU EIA legislation have not significantly affected WIA practices in England and Wales. However, practices are not as problematic as research indicates is the case for ecological, socio-economic and cumulative impact assessments. Further strengthening the legislative provisions for EIA would partially address a number of specific problems (e.g., inadequate scoping and provision for monitoring). Nevertheless, a comprehensive and concerted strategy for enhancing effectiveness will be required if WIA is fulfil its potential for contributing to the management maxim of sustainable development.

1984 ◽  
Vol 41 (4) ◽  
pp. 720-732 ◽  
Author(s):  
R. E. Hecky ◽  
R. W. Newbury ◽  
R. A. Bodaly ◽  
K. Patalas ◽  
D. M. Rosenberg

The impoundment of Southern Indian Lake (SIL) and diversion from the lake of the Churchill River in northern Manitoba, Canada, were the subjects of two independent environmental impact statements. Subsequently, a case study measured change in the limnological and biological characteristics of the lake after development. Comparison of pre- and post-impoundment observations allows an assessment of the predictive capability that was applied to the lake by the preimpact statements. Predictions related to the physical environment, e.g. increased shoreline erosion, littoral sedimentation, higher turbidity, and decreased light penetration and visibility, were qualitatively correct; however, an unpredicted decrease in water temperature also occurred. Increased phosphorus availability and light limitation of primary production were also correctly forecasted in a qualitative manner. These aspects will be quantitatively predictable in future reservoirs because of studies at SIL and elsewhere. Biological responses above the primary trophic level were mostly not predicted or predicted incorrectly. Unpredicted changes that were especially significant to the fishery were rapid declines in the quantity and quality of whitefish (Coregonus clupeaformis) catch, increases in mercury concentrations in fish, and the need for extensive compensation programs to keep the fishery economically viable. Testable hypotheses to explain all unpredicted events have been formulated but require experimental verification. The paradigm of reservoir ecosystem development that is present in the literature requires reformulation if future environmental impact analyses of reservoirs are to be improved.


2010 ◽  
Vol 28 (1) ◽  
pp. 15-27 ◽  
Author(s):  
Kimmo Jalava ◽  
Sanna Pasanen ◽  
Mikko Saalasti ◽  
Markku Kuitunen

Sign in / Sign up

Export Citation Format

Share Document