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Abstract:In this paper, we have explored the possibility of substituting traditional meat products with an alternative source of protein (insects) in order to reduce human pressure on water. Insects, in fact, could represent a good alternative source of quality proteins and nutrients and they are already a very popular component of the diet of one third of the world's population in approximately 80% of countries. In the study, we have taken into account only two species of edible insects (Tenebrio molitor and Zophobas morio mealworms), because they are already commercially produced even in Western countries, and for this reason it is possible to find specific data in literature about their diets. We have used the water footprint (WF) as a reliable indicator to calculate the volume of water required for production and to compare different products. The final aim of the work is, in fact, to evaluate the WF of the production of edible insects with a focus on water consumption associated with protein content, in order to make a comparison with other animal protein sources. We have demonstrated that, from a freshwater resource perspective, it is more efficient to obtain protein through mealworms rather than other traditional farmed animals.

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The process of adopting innovation, especially with regard to precision farming (PF), is inherently complex and social, and influenced by producers, change agents, social norms and organizational pressure. An empirical analysis was conducted among Italian farmers to measure the drivers and clarify “bottlenecks” in the adoption of agricultural innovation. The purpose of this study was to analyze the socio-structural and complexity factors that affect the probability to adopt innovations and the determinants that drive an individual’s decisions. Preliminary results found high levels of adoption among younger farmers, those that had a high level of education, those with high intensity of information, with large farm sizes, and high labor intensity. A logit model was used to understand the role played by labor intensity and perceived in the adoption process. In light of the Common Agricultural Policy Reform post 2020, the findings suggest relevant policy implications, such as the need to increase awareness of PF tools and foster dissemination of information aimed at reducing the degree of perceived complexity.

Abstract:The worsening of groundwater quality is a huge problem for some regions, especially where a karst aquifer system is the most important water resource because of the deficiency of a well-developed superficial water supply. In this study the chemical quality of a deep aquifer of the Salento peninsula (Southern Italy), where a shallow aquifer and an extensive deep aquifer are exploited as a source of drinking water and irrigation water, was monitored. The indicator used to assess the sustainability of pollution produce by human activities is the "grey water footprint" (GWF) which measures the amount of water required to assimilate a polluting load produced from anthropic activity. The GWF, calculated for each chemical parameter, shows a widespread contamination by Mercury (Hg), Vanadium (V) and Ammonium (NH 4 + ) with concentrations above the limits (Lgs. D. 31/2001). The high Mercury and Vanadium concentrations may thus be associated with anthropic pressures on the aquifer, while Ammonium derives mainly from fertilizers used in agriculture. The situation that emerged involves reflections on the continuous human pressure on natural resources. Therefore, the management of groundwater quality requires a multidisciplinary approach focused on identifying the measures necessary to protect our water resources.

Abstract:The present research is aimed at establishing how farmers can be encouraged to adopt irrigation water saving measures. By developing and implementing an extended version of the well-known Theory of Planned Behavior, we considered farmers' propensity to adopt innovations and their water footprints. In a sample of 150 Italian farmers, we found that favorable attitudes towards water saving measures, and the orientations of environmental associations and public bodies favorably influence farmers' intentions to adopt water saving measures. Farmers' innovativeness and water footprints also exert a significant influence on their adoption intentions. The paper also discusses the contribution of these results to the previous literature and highlights practical implications for policy makers interested in promoting the adoption of irrigation water saving measures.

Water is an essential element for life, playing an important role in economic development, although it is threatened by negative externalities that do not make it available for everyone. The main purpose of this article is to offer insightful empirical evidence of the nexus between economic growth and water usage. In this article we investigate the Environmental Kuznets Curve (EKC) hypothesis using a country's water footprint as an indicator of water impact. Using linear and nonlinear models we estimate, through the ordinary least square, the relationship between water impact and gross national income (GNI) per capita for 94 Countries. Our study shows an N-shape curve, which does not confirm the EKC hypothesis, both for the relationship between Water Footprint per capita and GNI per capita and Grey Water Footprint per capita and GNI per capita. From this results, a number of recommendations can be provided to strengthen the water resources policies and management. 20 Water and Environment Journal 31 (2017) 20-30 V C 2016 CIWEM. Water and Environment Journal. Print ISSN 1747-6585 Environmental Kuznets curve and the water footprint P. P. Miglietta et al.