Variation In Environmental Performance Research Articles

The environmental impacts of different organic rice management in Italy considering different productive scenarios

Rice cultivation has a key role in food security worldwide; on the other hand, it has a high potential impact on the environment and human health, mainly due to the extensive pesticides use and greenhouse gas emissions caused by flooded cultivation. In Italy, the rice sector based mainly on high-input monoculture. The transition toward organic agriculture can improve the environmental performance of rice farming according to the actual European sustainable food production strategy. Through LCA methodology, the study aims to evaluate the variability of the environmental impacts and the mitigation potential of four management strategies suitable for organic rice production in North Italy and two production potential levels observed during three-year monitoring on 10 farms in the study area. The LCA analysis includes the wide range of agronomic realities that characterise this farming system, assessing the variation in environmental performance by exploring eight plausible and possible scenarios for organic rice. Results suggest a considerable potential of organic rice production to mitigate its impact on natural resources, depending on the chosen agricultural practices. In particular, six LCA indicators showed a potential of reduction over 40 %, shifting from the worst-performing management to the better one.Finally, the large variability of climate change impacts assessed, both in this study and in literature, is due to the corresponding existing large variability in terms of yield and available patterns of agricultural practices.Today the farmers could reach acceptable yield values thanks to more efficient management than in the past. The acknowledgement for that performances relates to the development of the farmers' know-how and to the productive improvement connected to the long-term processes which characterise the organic systems (e.g. generation of soil fertility based on biological fertility and stable humus components; lowering of weeds pressure through the gradual introduction of other crops in rotation).

Sensitivity of environmental performance index based on stochastic dominance

The Environmental Performance Index (EPI) is a popular sustainability index. It is a composite index which ranks 180 countries based on their environmental performance in 32 indicators. Using the EPI data and stochastic dominance efficiency methodology, this paper examines the sensitivity to the subjective weights assigned to the indicators and categories of environmental performance. The findings show a remarkable variation in environmental performance based on alternative weights which are selected using Stochastic Dominance criteria. Except for 2020, the environmental health category in EPI gets relatively higher importance in the optimal scenario, and ecosystem vitality gets relatively higher weights in the inferior scenario, suggesting that the environmental health category achievements have been relatively higher for most countries over time. The ranking analysis also shows major variations in country rankings with alternative weights. Two countries, Maldives and Gabon, would have experienced more than 100 position changes in their rankings with alternative weights. Furthermore, 67 countries would have experienced 30 or more position changes in their rankings and 37 countries experienced an EPI score change of more than 50 (out of 100) with alternative weights. Overall, the results illustrate the importance of sensitivity analysis of composite indices to increase reliability and transparency.

Green construction and environmental performance: an assessment framework

PurposeConstruction firms worldwide are increasingly taking pragmatic steps towards addressing environmental problems arising from their activities. Nonetheless, there is a paucity of studies focused on the nexus between green construction and environmental performance. Hence, this study aims to examine the linkages between green construction practice and environmental performance.Design/methodology/approachAn extensive literature review was conducted to identify the relevant dimensions of green construction practice and indicators for measuring environmental performance. Variables collated were then subjected to pre-assessment and pre-testing processes. The pre-assessment was used as a preliminary content validation where experts assessed the various dimensions of green construction practice and indicators for measuring environmental performance proposed and determine if indeed the variables represent what the study set out to measure. Data were collected from construction professionals within the Ghana's Kumasi Metropolis. The sample size for the study was 100 experts in sustainable construction methods in the construction industry. A total of 63 responses were received out of the 100 target respondents, accounting for a 63% response rate. Data generated was analysed using mean score analysis and one-sample t-test to determine the level of significance of the various green construction practices and indicators for measuring environmental performance. A Pearson correlation analysis was undertaken to ascertain the relationships that exist among the various dimensions of green construction practice and indicators for measuring environmental performance. Finally, multiple linear regression analysis was utilised to ascertain the effect of the adoption of green construction practice on environmental performance.FindingsThe results indicate that all the green construction practices and the indicators of environmental performance identified from the literature were significant at p = 0.05. The study's findings revealed that energy management is the most significant construct of green construction practice followed by storm-water management. Furthermore, the analysis showed that the preservation of water is the most significant environmental performance indicator followed by sanitation. The regression model developed also explained that 75% of the variations in environmental performance are explained by green construction practice.Research limitations/implicationsNotwithstanding the study's achievements, one major limitation the research faced was the relatively small sample size.Practical implicationsThis study provides sufficient data for construction professionals to identify the various green construction practices that could enhance environmental performance. The study's results showed that environmental performance could be improved by adopting the key green construction practices identified in this study. Pragmatic directions are also provided to stakeholders in the construction industry to take a critical look at the environmental performance indicators that were significant.Originality/valueThis pioneering research attempts to investigate the linkages between green construction practice and environmental performance in Ghana. Key results provide a critical evidential influence of green construction on environmental performance and make a crucial contribution to the current body of knowledge.

The Life Cycle Environmental Performance of On-Site or Decentralised Wastewater Treatment Systems for Domestic Homes

There is little knowledge regarding the environmental sustainability of domestic on-site or decentralised wastewater treatment systems (DWWTS). This study evaluated six unique life cycle environmental impacts for different DWTTS configurations of five conventional septic tank systems, four packaged treatment units, and a willow evapotranspiration system. Similar freshwater eutrophication (FE), dissipated water (DW), and mineral and metal (MM), burdens were noted between the packaged and conventional system configurations, with the packaged systems demonstrating significantly higher impacts of between 18% and 56% for climate change (CC), marine eutrophication (ME), and fossils (F). At a system level, higher impacts were observed in systems requiring (i) three vs. two engineered treatment stages, (ii) a larger soil percolation trench area, and (iii) pumping of effluent. The evapotranspiration system presented the smallest total environmental impacts (3.0–10.8 lower), with net benefits for FE, ME, and MM identified due to the biomass (wood) production offsetting these burdens. Further analysis highlighted the sensitivity of results to biomass yield, operational demands (desludging or pumping energy demands), and embodied materials, with less significant impacts for replacing mechanical components, i.e., pumps. The findings highlighted the variation in environmental performance of different DWTTS configurations and indicated opportunities for design improvements to reduce their life cycle impacts.

Opening the Door: The Effect of Environmental Transparency and Performance on Shareholder Activism

Institutional pressures have increased voluntary disclosures by public companies on environmental issues. At the same time, regulatory guidance has increasingly opened the shareholder resolution process to environmental shareholder resolutions. These two developments represent an increasingly open corporate opportunity structure for environmental shareholder activists. In this study, using a panel of US public companies, we test how variations in environmental performance and transparency on environmental issues impact the likelihood of being targeted by different types of environmental shareholder resolutions. We find that environmental shareholder activists engage with firms based on the expected benefits of that engagement, based on the corporate opportunity structure, firm environmental performance, and firm environmental transparency. By differentiating between resolutions requesting disclosure and those requesting a specific action, we are able to test how shareholder activists bring resolutions that promote norm enforcement and norm entrepreneurship differently depending on prior firm behavior on environmental transparency and environmental performance.

Basins at Risk: Predicting International River Basin Conflict and Cooperation

Growing demands for water combined with supply constraints may lead to an increased potential for international water conflicts, because many of the world’s freshwater systems cut across national boundaries. Which international river basins are likely to experience greater conflict risks or more cooperation? What factors increase or decrease conflict risk (cooperation)? We use prediction and forecasting approaches to address these questions and compare the results with findings of an earlier “basins at risk” study. Whereas the earlier study identified twenty-nine basins at risk, our study identifies forty-four such river basins. We also arrive at different findings with respect to key determinants of river basin conflict and cooperation. Our analytical approach also can help to increase the robustness of explanatory models in other areas of environmental politics, and could make research findings more policy-relevant by moving from ex-post analysis to in-sample prediction and out-of-sample forecasting.

Measuring environmental efficiency of agricultural water use: A Luenberger environmental indicator

Irrigated agriculture creates substantial environmental pressures by withdrawing large quantities of water, leaving rivers and wetlands empty and unable to support the valuable ecosystems that depend on the water resource. The key challenge facing society is that of balancing water extractions for agricultural production and other uses with provision of appropriate environmental flow to maintain healthy rivers and wetlands. Measuring tradeoffs between economic gain of water use in agriculture and its environmental pressures can contribute to constructing policy instruments for improved water resource management. The aim of this paper is to develop a modelling framework to measure these tradeoffs. Using a new approach – Luenberger environmental indicator – the study derives environmental efficiency scores for various types of irrigation enterprises across seventeen natural resource management regions within the Murray-Darling Basin, Australia. Findings show that there is a substantial variation in environmental performance of irrigation enterprises across the regions. Some enterprises were found to be relatively environmentally efficient in some regions, but they were not efficient in others. The environmental efficiency scores could be used as a guideline for formulating regional policy and strategy to achieve sustainable water use in the agricultural sector.

Environmental performance and compliance costs for industrial wastewater treatment – an international comparison

AbstractInvestment in environmental protection, in connection with all productive investments in industrial processes and plants, is obligatory and routine in industrialized and high‐income countries. The quality of the environmental regulatory system, including regulatory stringency, has been found to have a connection with national wealth.In this study, the relationships between environmental performance, the cost of environmental protection and the wealth of nations are examined by using international statistics on industry, economics and the environment. Environmental performance is studied using data on emissions of organic water pollutants resulting from industrial activities as well as the investments and current expenditure on wastewater management in selected countries. Variations in environmental performance discovered among countries are both absolute and relative with respect to the level of expected BOD intensity based on the wealth of these countries. The costs of wastewater management to Finnish industry are presented. Copyright © 2009 John Wiley & Sons, Ltd and ERP Environment.

International Economic Integration and Environmental Protection: The Case of China

This paper tests propositions advanced in previous theoretical literature about the impact of international economic integration via trade and investment on environmental protection with a case study of China. We hypothesize that instead of leading to additional environmental degradation, increased openness to trade and foreign investment results in an overall improvement in environmental quality by acting as a transmission belt for superior regulatory standards and environmental technology from China's key export markets. Additionally, pressure for enhanced environmental regulation and product standards from principal developed-world importers of Chinese goods may induce Chinese firms to self-regulate rather than attempting to reduce the cost of their exports by lowering environmental standards. Statistical analysis of the variation in environmental performance across China's regions from 1996 to 2004 lends support to this hypothesis, indicating that rather than leading regions to engage in a “race to the bottom” with the lowering of environmental standards, increased trade and investment encourages more stringent policy enforcement and compliance.

Do firms adopt lower standards in poorer areas? Corporate social responsibility and environmental justice in the EU and the US

Within the context of broader debates on corporate social responsibility (CSR) and environmental justice (EJ), this paper examines three key questions: first, how the standards that corporations adopt at the global scale trickle down into local site‐level practices; second, whether levels of corporate environmental performance vary from place to place; and third whether any variations in corporate environmental performance relate to the principles of EJ. To do this, the analysis draws upon recently disclosed data to evaluate variations in the environmental performance of oil refineries across the US and the EU. It finds significant variations in emissions of some key pollutants. These exist both across the range of refineries, with dirtier refineries emitting at least five times as much as cleaner refineries, and between the EU and the US, with refineries in the EU emitting more than twice as much as refineries in the US. At the local level, it finds that there are correlations between higher levels of emissions from refineries and lower levels of income, employment and population density. Although these findings provide support for some of the contentions of the EJ movement, they do not say anything about causality, and as a result we cannot say definitively that companies adopt lower standards in poorer areas.

Benchmarking the Environmental Performances of Farms (4 pp)

The usual route for improvement of agricultural practice towards sustainability runs via labelling schemes for products or farm practices. In most approaches requirements are set in absolute terms, disregarding the variation in environmental performance of farms. Another approach for promoting sustainable farming concerns the concept of benchmarking, which takes into account competition among farmers. The individual agricultural performance is characterized by quantitative criteria and compared with scores of other relevant farms. Therefore, a pilot study has been conducted in the Netherlands concerning benchmarking among arable farmers in the Internet involving crop protection. A voluntary Dutch benchmark initiative in the Internet is described including farmers' perception regarding the tool. The results show that the benchmark tool in the Internet allows farmers to compare their environmental and economic performance anonymously and securely in a large-scale open-access environment. The pilot group of farmers responded positively to the instrument. An important factor in success is the ease and speed with which data can be entered into the benchmark tool. A benchmark tool for comparing the environmental performance among farmers can form the basis for agreements between farmers and their costumers. An application involving food industry and retailers is discussed.

Institutions and Environmental Performance in Seventeen Western Democracies

This article examines the relationship between national political and economic institutions and environmental performance since the early 1970s in seventeen OECD countries. After presenting hypotheses about some of the effects of the most important structural and institutional variables on performance, I test these hypotheses using a multiple regression analysis. I find that neo-corporatist societies experience much better environmental outcomes than more pluralist systems. However, neither the degree of ‘consensual’ political democracy nor traditional political factors can explain much variation in environmental performance. These relationships hold even after controlling for other structural factors such as income and manufacturing intensity. The results are robust despite perennial small-n statistical problems encountered in comparative political economy.