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This study evaluates the environmental impact of the cement production and its variations between different cement plants, using Life Cycle Impact Assessment. For that purpose, details of the cement production processes are investigated in order to show the respective part of raw materials preparation and clinker production using environmental impacts calculated with CML01 indicators. For the kiln emission data, a European pollutant emission register for French intensive industries is used to quantify the variability of indicators between cement plants. For the CML01 indicators that are controlled by kiln emissions, some of them (i.e. global warming, photochemical oxidation) show variations between cement plants...
This study uses a hedonic price model to estimate the effect of proximity to a ma jor fuel pipeline on housing prices, both before and after a high-profile accident. Using data for Belling ham, Washington, the site of a 1999 rupture and explosion, we find no significant effect of proximity to the pipeline prior to the accident. Following the accident, we find a substantial price effect; however, the effect decays rapidly with distance from the pipe line and also diminishes over time. Results suggest that for this type of environmental hazard, an ad verse event leads to an increase in perceived risk.
The U.S. continues efforts to develop genetically superior short-rotation woody crops (hybrid poplar and willow) and herbaceous crops (switchgrass). These biomass crops can provide multiple environmental benefits as well as energy and fiber. This paper focuses on results of site-specific studies that are quantifying the environmental potential and ramifications of converting agricultural croplands to biomass crop production. At research-scales, no differences have been found in erosion and movement of nutrients from annual row crops, switchgrass, and tree crops with and without a cover crop in the initial year of establishment. Research- and watershed-scale studies on different soil types, in different regions,...
Broadening the IYamework of enviromnental impact assessment (EIA) involves an e×amination of the principles and policies which should underlie ecologically sustainable development. To work effectively, EIA procedures need to be located within a broad fi'amework of policies and environmental objectives, standards and monitoring. This paper discusses the political and environmental context in Australia within which the debate on sustainable development is occurring. Some important principles which underlie an ecologically sustainable development policy IYamework are discussed, These include inter-generational equity, conservation of biological diversity and ecological integrity, maintenance of natural capital and...