Assessing the economic value of Posidonia oceanica (L.) at Tremiti Islands (Mediterranean Sea): An ecosystem condition-based approach

In the context of limiting global warming, the seagrass Posidonia oceanica (L.) gained the centrality of several international climate change mitigation projects being the most effective carbon storage sink among Mediterranean seagrasses. To assess and monitor the change of environmental conditions and economic values of natural resources, the present study moves from the insights of the System of Environmental-Economic Accounting - Ecosystem Accounting to assess the economic value of the carbon sequestration and storage capacity of the Mediterranean-endemic seagrass P. oceanica at the Tremiti Islands Marine Protected Area. The economic value is compared across: i. the reference study by Pergent-Martini et al.; ii. the ecological condition-based approach; and iii. the unit value transfer. Based on the obtained outcomes, an ecosystem-based approach would prevent biases in the accounting of the ecosystem-service provision capacity of P. oceanica and help the policy maker to implement adequate public investment policies to mitigate its overall degradation.

Extended reality-based choice experiment to assess the impact of offshore wind turbines in historic center: The case of Manfredonia

This paper proposes a novel four-step methodology to achieve an extended-reality-based choice experiment in historic and touristic centers. The study exploits the case of Manfredonia (a seaside town in southern Italy) to apply the new approach and investigates public attitudes and preferences towards the installation of offshore wind turbines in the area. The novelty of the proposed work is twofold: i) for the first time, a structured methodological approach is defined for the development of a hybrid extended-reality-based choice experiment; ii) the perception of the visual impact of offshore wind turbines is assessed in a touristic and historic city in southern Italy exploiting the proposed approach. Our findings underscore the importance of continuously monitoring public perceptions to maintain and promote support for sustainable energy solutions, particularly in relation to the perception of wind energy's visual impact. In particular, 65% of respondents express their worries about wind power plants impact on the landscape. Moreover, the positive coefficient of the visual impact (0.011) suggests a positive utility of respondents from a higher off-shore turbines' density and a marginal willingness to accept a compensation of about 13€ for the visual impact and of about 33€ for the distance from the shore. In this context the use of extended reality technology in choice experiment scenarios significantly improves the results and enhances the understanding of the landscape impact of offshore wind farms.

Market-based tools for a plastic waste reduction policy in agriculture: A case study in the south of Italy

The 2018 European Strategy for Plastics in a Circular Economy identifies a set of actions to reduce plastic waste in the EU in the near future. To implement this strategic view, appropriate policy tools need to be identified within Member Countries. The present work aims at investigating farmers' attitudes towards the use of traditional market-based tools (i.e. subsidies and tax-credits) as well as other initiatives such as a pay-back mechanism under an Extended Producer Responsibility (EPR) to reduce plastic waste in agriculture. We analyse the case of the province of Foggia, an area which is recognised as being the largest plain in southern Italy. We consider a survey of 1,783 farmers and a multinomial regression model to infer on the probability of adopting the above policy tools. Key results suggest that the choice of each policy tool would be affected by the type of plastic waste generated. In particular, plastic packaging and plastic films would be likely to affect the probability to opt for a subsidy. In contrast, other types of plastic waste mainly generated by cereal crops activities (e.g. plastic bags and bottles for fertilisers and chemicals) would favour the adoption of a tax-credit mechanism. As for other aspects, horticulture production and the proximity to a collection site for waste disposal would increase the probability of adopting an EPR policy to contribute to plastic waste reduction.