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  • Publication . Other literature type . Project deliverable . 2022
    Open Access English
    Authors: 
    Stefanoni; Latterini; Attolico;
    Publisher: Zenodo
    Project: EC | MAGIC (727698)

    The exploitation of industrial crops for the production of ligno-cellulosic compounds and vegetable oil on marginal lands relies on efficient harvesting and logistics’ strategies. The present deliverable goes through the difficulties encountered from harvesting to dispatchment of indrustrial crops highlighting prons and cons of the currently available technologies to improve the whole value chain in the following categories: lignocellulosic crops (fiber, herbaceous perennial and Short-Medium Rotation Coppice (SRC-MRC)) and oil crops. The two sections are indipendently investigated focusing on harvesting and densifiction of the biomass to reduce cost and increase profitability. The information provided within the present document was gathered from experimental data collected on fields, from literature review and background knowledge gained from collaboration in previous research projects. Regarding fiber crop (in particular hemp) it is possible to say that there are several solutions available to harvest this species, which should be properly selected according to the crop features and to the aim of the cultivation, i.e. fiber and seed-fiber. Focusing on lignocellulosic crops, the present deliverable focused mainly on miscanthus, describing the possible alternative solutions which are generally based on cutting the plants and densify them through chipping and/or baling. Harvesting systems for SRC and MRC have been instead experiencing a substantial change in the last years, shifting from dedicated systems for biomass harvesting and densification to semi or fully mechanized harvesting approaches, derived from forestry sector, in order to produce fiber wood from the main stem and biomass from branches and tops. Finally, concerning oil crops, it is possible to say that, among the investigated ones, camelina and castor can efficiently be harvested with conventional combine harvesters equipped with cereal and sunflower header respectively. Castor bean harvesting is instead still a great challenge, indeed the present deliverable highlights how a sunflower header is a better option than a cereal one, but however many concerns are still present regarding seed loss and quality of the collected product.

  • Publication . Article . Preprint . 2022 . Embargo End Date: 01 Jan 2022
    Open Access English
    Authors: 
    Gunhild A. Reigstad; Simon Roussanaly; Julian Straus; Rahul Anantharaman; Robert de Kler; Maxine Akhurst; Nixon Sunny; Ward Goldthorpe; Lionel Avignon; Jonathan Pearce; +4 more
    Publisher: ETH Zurich
    Countries: United Kingdom, Norway, Switzerland
    Project: EC | ACT (691712)

    The urgency to achieve net-zero carbon dioxide (CO2) emissions by 2050, as first presented by the IPCC special report on 1.5 °C Global Warming, has spurred renewed interest in hydrogen, to complement electrification, for widespread decarbonization of the economy. We present reflections on estimates of future hydrogen demand, optimization of infrastructure for hydrogen production, transport and storage, development of viable business cases, and environmental impact evaluations using life cycle assessments. We highlight challenges and opportunities that are common across studies of the business cases for hydrogen in Germany, the UK, the Netherlands, Switzerland and Norway. The use of hydrogen in the industrial sector is an important driver and could incentivise large-scale hydrogen value chains. In the long-term hydrogen becomes important also for the transport sector. Hydrogen production from natural gas with capture and permanent storage of the produced CO2 (CCS) enables large-scale hydrogen production in the intermediate future and is complementary to hydrogen from renewable power. Furthermore, timely establishment of hydrogen and CO2 infrastructures serves as an anchor to support the deployment of carbon dioxide removal technologies, such as direct air carbon capture and storage (DACCS) and biohydrogen production with CCS. Significant public support is needed to ensure coordinated planning, governance, and the establishment of supportive regulatory frameworks which foster the growth of hydrogen markets. Advances in Applied Energy, 8 ISSN:2666-7924

  • Open Access
    Authors: 
    Norman Rößger; Torsten Sachs; Christian Wille; Julia Boike; Lars Kutzbach;
    Country: Germany
    Project: EC | ERA-PLANET (689443)

    AbstractWhile increasing methane emissions from thawing permafrost are anticipated to be a major climate feedback, no observational evidence for such an increase has previously been documented in the literature. Here we report a trend of increasing methane emissions for the early summer months of June and July at a permafrost site in the Lena River Delta, on the basis of the longest set of eddy covariance methane flux data in the Arctic. Along with a strong air temperature rise of 0.3 ± 0.1 °C yr−1 in June, which corresponds to an earlier warming of 11 d, the methane emissions in June and July have increased by roughly 1.9 ± 0.7% yr−1 since 2004. Although the tundra’s maximum source strength in August has not yet changed, this increase in early summer methane emissions shows that atmospheric warming has begun to considerably affect the methane flux dynamics of permafrost-affected ecosystems in the Arctic.

  • Open Access
    Authors: 
    Patrícia Fortes; Sofia Simoes; Filipa Amorim; Teresa Armada Brás;
    Publisher: Elsevier BV
    Country: Portugal
    Project: EC | ERA4CS (690462)

    ABSTRACT: Climate change may increase water needs for irrigation in southern Europe competing with other water uses, such as hydropower, which may likely be impacted by lower precipitation. Climate change will also potentially affect the variability and availability of other renewable energy resources (solar and wind) and electricity consumption patterns. This work quantifies the effect of competition for water use between irrigation and hydropower in the future 2050 Portuguese carbon-neutral power sector and under Representative Concentration Pathway 8.5 climate change projections. It uses the power system eTIMES_PT model to assess the combined effects of climate change on the cost-optimal configuration of the power sectorconsidering changes in irrigation, hydropower, wind and solar PV availability. eTIMES_PT is a linear optimisation model that satisfies electricity demand at minimal total power system cost. Results show that, by 2050, climate change can lead to an increase in annual irrigation water needs up to 12% in Tagus and 19% in Douro watersheds (from 2005 values), with substantially higher values for spring (up to 84%). Combining these increased water needs with the expected reduction in river runoff can lead to a decline in summer and spring hydropower capacity factors from half to three times below current values. By 2050, concurrent water uses under climate change can reduce hydropower generation by 26–56% less than historically observed, mainly in summer and spring. Higher solar PV, complemented with batteries’ electricity storage, can offset the lower hydropower availability, but this will lead to higher electricity prices. Adequate transboundary water management agreements and reducing water losses in irrigation systems will play a key role in mitigating climate impacts in both agriculture and power sector. info:eu-repo/semantics/publishedVersion

  • Open Access
    Authors: 
    Leandra M. Weydt; Federico Lucci; Alicja Lacinska; Dirk Scheuvens; Gerardo Carrasco-Núñez; Guido Giordano; Christopher A. Rochelle; Stefanie Schmidt; Kristian Bär; Ingo Sass;
    Countries: Germany, United Kingdom, Italy
    Project: EC | GEMex (727550)

    AbstractHydrothermal alteration is a common process in active geothermal systems and can significantly change the physiochemical properties of rocks. To improve reservoir assessment and modeling of high-temperature geothermal resources linked to active volcanic settings, a detailed understanding of the reservoir is needed. The Los Humeros Volcanic Complex, hosting the third largest exploited geothermal field in Mexico, represents a natural laboratory to investigate the impact of hydrothermal processes on the rock properties through andesitic reservoir cores and outcropping analogs. Complementary petrographic and chemical analyses were used to characterize the intensities and facies of hydrothermal alteration. The alteration varies from argillic and propylitic facies characterized by no significant changes of the REE budget indicating an inert behavior to silicic facies and skarn instead showing highly variable REE contents. Unaltered outcrop samples predominantly feature low matrix permeabilities (< 10–17 m2) as well as low to intermediate matrix porosities (< 5–15%), thermal conductivities (0.89–1.49 W m−1 K−1), thermal diffusivities (~ 0.83 10–6 m2 s−1), and sonic wave velocities (VP: ~ 2800–4100 m s−1, VS: ~ 1600–2400 m s−1). Average magnetic susceptibility and specific heat capacity range between 2.4–7.0 10–3 SI and 752–772 J kg−1 K−1, respectively. In contrast, the hydrothermally altered reservoir samples show enhanced porosities (~ 7–23%), permeabilities (10–17–10–14 m2), and thermal properties (> 1.67 W m−1 K−1; > 0.91 10–6 m2 s−1), but a significant loss of magnetic susceptibility (10–3–10–6 SI). In particular, this latter characteristic appears to be a suitable indicator during geophysical survey for the identification of hydrothermalized domains and possible pathways for fluids. The lack of clear trends between alteration facies, alteration intensity, and chemical indices in the studied samples is interpreted as the response to multiple and/or repeated hydrothermal events. Finally, the proposed integrated field-based approach shows the capability to unravel the complexity of geothermal reservoir rocks in active volcanic settings.

  • Open Access
    Authors: 
    Oleh Prysiazhniuk; Oksana Maliarenko; Mykola Roik; Yaroslav Fuchylo; Iris Lewandowski; Kristaps Makovskis; Dagnija Lazdina; Moritz von Cossel;
    Publisher: Wiley
    Project: EC | MAGIC (727698)
  • Open Access English
    Authors: 
    Marianna Cavallo; Pascal Raux; Fabio Massa; Davide Fezzardi; José A. Pérez Agúndez;
    Publisher: HAL CCSD
    Country: France
    Project: EC | MedAID (727315)

    In some food production systems, sustainability and acceptability are considered umbrella concepts that can be assessed through a combination of criteria and indicators. After a remarkable and somewhat chaotic development in the early ‘90s, European aquaculture has been evolving in both scientific and policy domains to improve, and to prove, its sustainability. The updated review of the literature and policy framework presented in this contribution highlights gaps in European studies, addressing mostly concerns over the environmental impacts and food safety and less in terms of economic impacts on other coastal activities or the effects on social values and local traditions. The analysis of the legislative framework demonstrates that the existing legislation adopted at different levels addresses most of the criteria of social acceptability through binding rules and supporting guidelines. Nonetheless, some elements of social concerns, such as the impact of escapes or the degradation of the landscape, remain unaddressed. A number of actions are proposed that should be implemented by all the actors involved in aquaculture management to improve social attitudes and thus, the acceptance by the different segments of the society.

  • Closed Access
    Authors: 
    Christopher Parks; Kevin J. Hughes; Mohammed Pourkashanian;
    Publisher: Elsevier BV
    Project: EC | ACT (691712)
  • Open Access
    Authors: 
    Rafael E. Carrillo; Antonis Peppas; Yves Stauffer; Chrysa Politi; Tomasz Gorecki; Pierre-Jean Alet;
    Publisher: MDPI AG
    Project: EC | SABINA (731211)

    The increasing penetration of renewable energy sources creates a challenge for the stability of current power systems due to their intermittent and stochastic nature. This paper presents the field results of an efficient demand response solution for controlling and adjusting the electric demand of buildings in an energy district through the activation of their thermal mass while respecting the occupants’ thermal comfort constraints. This multilevel control approach aims to support grid flexibility during peak times by constraining the energy exchange with the grid and increasing the self-consumption of the district. The results show a great potential for increasing the self-consumption up to 37% for offices, as well as improving the indoor environment, based on real data collected from a case study in Greece.

  • Open Access
    Authors: 
    Maria Cecilia Mancini; Marianna Guareschi; Valentin Bellassen; Filippo Arfini;
    Publisher: Wiley
    Country: France
    Project: EC | Strength2Food (678024)

    International audience; In the European context, geographical indications (GIs) are tools that contribute to the achievement of rural development policy objectives. In this article, we propose that GI value chains produce positive environmental, social and economic benefits, defined as Public Goods (PGs), resulting from the rules defined in the Code of Specifications (CoS). This article reports the main results of the Strength2food H2020 project, designed to assessing the impact of GIs (through their CoSs) on agri-food system sustainability. Specifically, this report highlights that GI CoSs may generate PGs through the rules codified in CoSs presented as good practices in the production of PGs for other GI systems. Some final recommendations are proposed from the analysis of those good practices which contribute to the generation of PGs and, consequently, to the improvement of a sustainable rural development process. Case studies analysed show that generation of PGs requires both an internal and external intervention. The former intervention implies governance strategies for GI territorial systems and value chains that can improve the production of PGs. The latter intervention entails consumers and other stakeholder communication strategies to raise awareness regarding PG generation. These interventions will ultimately increase the social value of GIs.; Dans le contexte européen, les indications géographiques (IG) sont des outils qui contribuent à la réalisation des objectifs de la politique de développement rural. Dans cet article, nous suggérons que les chaînes de valeur des IG apportent, du fait des règles définies dans le Cahier des charges (CdC), des avantages environnementaux, sociaux et économiques positifs, définis comme des biens d’intérêt public (BP). Cet article rapporte les principaux résultats du projet Strength2food H2020, conçu pour évaluer l'impact des IG (au travers de leurs CdC) sur la durabilité des systèmes agroalimentaires. Plus précisément, ce rapport souligne que les CdC des IG peuvent générer des BP à travers les règles codifiées dans les CdC présentées comme des bonnes pratiques pour la production de BP, transposables à d'autres systèmes d’IG. Quelques recommandations finales sont proposées à partir de l'analyse de ces bonnes pratiques qui contribuent à la production de BP et, par conséquent, à l'amélioration d'un processus de développement rural durable. Les études de cas analysées montrent que la production de BP nécessite à la fois une intervention interne et externe. Le premier type d’intervention implique des stratégies de gouvernance pour les systèmes territoriaux et les chaînes de valeur des IG qui peuvent améliorer la production de BP. Le second type demande d'autres stratégies de communication vers les consommateurs et d’autres parties prenantes pour sensibiliser à la production de BP. Ces interventions augmenteront à terme la valeur sociale des IG.

Advanced search in Research products
Research products
arrow_drop_down
Searching FieldsTerms
Any field
arrow_drop_down
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arrow_drop_down
Include:
The following results are related to SDSN - Greece. Are you interested to view more results? Visit OpenAIRE - Explore.
2,984 Research products, page 1 of 299
  • Publication . Other literature type . Project deliverable . 2022
    Open Access English
    Authors: 
    Stefanoni; Latterini; Attolico;
    Publisher: Zenodo
    Project: EC | MAGIC (727698)

    The exploitation of industrial crops for the production of ligno-cellulosic compounds and vegetable oil on marginal lands relies on efficient harvesting and logistics’ strategies. The present deliverable goes through the difficulties encountered from harvesting to dispatchment of indrustrial crops highlighting prons and cons of the currently available technologies to improve the whole value chain in the following categories: lignocellulosic crops (fiber, herbaceous perennial and Short-Medium Rotation Coppice (SRC-MRC)) and oil crops. The two sections are indipendently investigated focusing on harvesting and densifiction of the biomass to reduce cost and increase profitability. The information provided within the present document was gathered from experimental data collected on fields, from literature review and background knowledge gained from collaboration in previous research projects. Regarding fiber crop (in particular hemp) it is possible to say that there are several solutions available to harvest this species, which should be properly selected according to the crop features and to the aim of the cultivation, i.e. fiber and seed-fiber. Focusing on lignocellulosic crops, the present deliverable focused mainly on miscanthus, describing the possible alternative solutions which are generally based on cutting the plants and densify them through chipping and/or baling. Harvesting systems for SRC and MRC have been instead experiencing a substantial change in the last years, shifting from dedicated systems for biomass harvesting and densification to semi or fully mechanized harvesting approaches, derived from forestry sector, in order to produce fiber wood from the main stem and biomass from branches and tops. Finally, concerning oil crops, it is possible to say that, among the investigated ones, camelina and castor can efficiently be harvested with conventional combine harvesters equipped with cereal and sunflower header respectively. Castor bean harvesting is instead still a great challenge, indeed the present deliverable highlights how a sunflower header is a better option than a cereal one, but however many concerns are still present regarding seed loss and quality of the collected product.

  • Publication . Article . Preprint . 2022 . Embargo End Date: 01 Jan 2022
    Open Access English
    Authors: 
    Gunhild A. Reigstad; Simon Roussanaly; Julian Straus; Rahul Anantharaman; Robert de Kler; Maxine Akhurst; Nixon Sunny; Ward Goldthorpe; Lionel Avignon; Jonathan Pearce; +4 more
    Publisher: ETH Zurich
    Countries: United Kingdom, Norway, Switzerland
    Project: EC | ACT (691712)

    The urgency to achieve net-zero carbon dioxide (CO2) emissions by 2050, as first presented by the IPCC special report on 1.5 °C Global Warming, has spurred renewed interest in hydrogen, to complement electrification, for widespread decarbonization of the economy. We present reflections on estimates of future hydrogen demand, optimization of infrastructure for hydrogen production, transport and storage, development of viable business cases, and environmental impact evaluations using life cycle assessments. We highlight challenges and opportunities that are common across studies of the business cases for hydrogen in Germany, the UK, the Netherlands, Switzerland and Norway. The use of hydrogen in the industrial sector is an important driver and could incentivise large-scale hydrogen value chains. In the long-term hydrogen becomes important also for the transport sector. Hydrogen production from natural gas with capture and permanent storage of the produced CO2 (CCS) enables large-scale hydrogen production in the intermediate future and is complementary to hydrogen from renewable power. Furthermore, timely establishment of hydrogen and CO2 infrastructures serves as an anchor to support the deployment of carbon dioxide removal technologies, such as direct air carbon capture and storage (DACCS) and biohydrogen production with CCS. Significant public support is needed to ensure coordinated planning, governance, and the establishment of supportive regulatory frameworks which foster the growth of hydrogen markets. Advances in Applied Energy, 8 ISSN:2666-7924

  • Open Access
    Authors: 
    Norman Rößger; Torsten Sachs; Christian Wille; Julia Boike; Lars Kutzbach;
    Country: Germany
    Project: EC | ERA-PLANET (689443)

    AbstractWhile increasing methane emissions from thawing permafrost are anticipated to be a major climate feedback, no observational evidence for such an increase has previously been documented in the literature. Here we report a trend of increasing methane emissions for the early summer months of June and July at a permafrost site in the Lena River Delta, on the basis of the longest set of eddy covariance methane flux data in the Arctic. Along with a strong air temperature rise of 0.3 ± 0.1 °C yr−1 in June, which corresponds to an earlier warming of 11 d, the methane emissions in June and July have increased by roughly 1.9 ± 0.7% yr−1 since 2004. Although the tundra’s maximum source strength in August has not yet changed, this increase in early summer methane emissions shows that atmospheric warming has begun to considerably affect the methane flux dynamics of permafrost-affected ecosystems in the Arctic.

  • Open Access
    Authors: 
    Patrícia Fortes; Sofia Simoes; Filipa Amorim; Teresa Armada Brás;
    Publisher: Elsevier BV
    Country: Portugal
    Project: EC | ERA4CS (690462)

    ABSTRACT: Climate change may increase water needs for irrigation in southern Europe competing with other water uses, such as hydropower, which may likely be impacted by lower precipitation. Climate change will also potentially affect the variability and availability of other renewable energy resources (solar and wind) and electricity consumption patterns. This work quantifies the effect of competition for water use between irrigation and hydropower in the future 2050 Portuguese carbon-neutral power sector and under Representative Concentration Pathway 8.5 climate change projections. It uses the power system eTIMES_PT model to assess the combined effects of climate change on the cost-optimal configuration of the power sectorconsidering changes in irrigation, hydropower, wind and solar PV availability. eTIMES_PT is a linear optimisation model that satisfies electricity demand at minimal total power system cost. Results show that, by 2050, climate change can lead to an increase in annual irrigation water needs up to 12% in Tagus and 19% in Douro watersheds (from 2005 values), with substantially higher values for spring (up to 84%). Combining these increased water needs with the expected reduction in river runoff can lead to a decline in summer and spring hydropower capacity factors from half to three times below current values. By 2050, concurrent water uses under climate change can reduce hydropower generation by 26–56% less than historically observed, mainly in summer and spring. Higher solar PV, complemented with batteries’ electricity storage, can offset the lower hydropower availability, but this will lead to higher electricity prices. Adequate transboundary water management agreements and reducing water losses in irrigation systems will play a key role in mitigating climate impacts in both agriculture and power sector. info:eu-repo/semantics/publishedVersion

  • Open Access
    Authors: 
    Leandra M. Weydt; Federico Lucci; Alicja Lacinska; Dirk Scheuvens; Gerardo Carrasco-Núñez; Guido Giordano; Christopher A. Rochelle; Stefanie Schmidt; Kristian Bär; Ingo Sass;
    Countries: Germany, United Kingdom, Italy
    Project: EC | GEMex (727550)

    AbstractHydrothermal alteration is a common process in active geothermal systems and can significantly change the physiochemical properties of rocks. To improve reservoir assessment and modeling of high-temperature geothermal resources linked to active volcanic settings, a detailed understanding of the reservoir is needed. The Los Humeros Volcanic Complex, hosting the third largest exploited geothermal field in Mexico, represents a natural laboratory to investigate the impact of hydrothermal processes on the rock properties through andesitic reservoir cores and outcropping analogs. Complementary petrographic and chemical analyses were used to characterize the intensities and facies of hydrothermal alteration. The alteration varies from argillic and propylitic facies characterized by no significant changes of the REE budget indicating an inert behavior to silicic facies and skarn instead showing highly variable REE contents. Unaltered outcrop samples predominantly feature low matrix permeabilities (< 10–17 m2) as well as low to intermediate matrix porosities (< 5–15%), thermal conductivities (0.89–1.49 W m−1 K−1), thermal diffusivities (~ 0.83 10–6 m2 s−1), and sonic wave velocities (VP: ~ 2800–4100 m s−1, VS: ~ 1600–2400 m s−1). Average magnetic susceptibility and specific heat capacity range between 2.4–7.0 10–3 SI and 752–772 J kg−1 K−1, respectively. In contrast, the hydrothermally altered reservoir samples show enhanced porosities (~ 7–23%), permeabilities (10–17–10–14 m2), and thermal properties (> 1.67 W m−1 K−1; > 0.91 10–6 m2 s−1), but a significant loss of magnetic susceptibility (10–3–10–6 SI). In particular, this latter characteristic appears to be a suitable indicator during geophysical survey for the identification of hydrothermalized domains and possible pathways for fluids. The lack of clear trends between alteration facies, alteration intensity, and chemical indices in the studied samples is interpreted as the response to multiple and/or repeated hydrothermal events. Finally, the proposed integrated field-based approach shows the capability to unravel the complexity of geothermal reservoir rocks in active volcanic settings.

  • Open Access
    Authors: 
    Oleh Prysiazhniuk; Oksana Maliarenko; Mykola Roik; Yaroslav Fuchylo; Iris Lewandowski; Kristaps Makovskis; Dagnija Lazdina; Moritz von Cossel;
    Publisher: Wiley
    Project: EC | MAGIC (727698)
  • Open Access English
    Authors: 
    Marianna Cavallo; Pascal Raux; Fabio Massa; Davide Fezzardi; José A. Pérez Agúndez;
    Publisher: HAL CCSD
    Country: France
    Project: EC | MedAID (727315)

    In some food production systems, sustainability and acceptability are considered umbrella concepts that can be assessed through a combination of criteria and indicators. After a remarkable and somewhat chaotic development in the early ‘90s, European aquaculture has been evolving in both scientific and policy domains to improve, and to prove, its sustainability. The updated review of the literature and policy framework presented in this contribution highlights gaps in European studies, addressing mostly concerns over the environmental impacts and food safety and less in terms of economic impacts on other coastal activities or the effects on social values and local traditions. The analysis of the legislative framework demonstrates that the existing legislation adopted at different levels addresses most of the criteria of social acceptability through binding rules and supporting guidelines. Nonetheless, some elements of social concerns, such as the impact of escapes or the degradation of the landscape, remain unaddressed. A number of actions are proposed that should be implemented by all the actors involved in aquaculture management to improve social attitudes and thus, the acceptance by the different segments of the society.

  • Closed Access
    Authors: 
    Christopher Parks; Kevin J. Hughes; Mohammed Pourkashanian;
    Publisher: Elsevier BV
    Project: EC | ACT (691712)
  • Open Access
    Authors: 
    Rafael E. Carrillo; Antonis Peppas; Yves Stauffer; Chrysa Politi; Tomasz Gorecki; Pierre-Jean Alet;
    Publisher: MDPI AG
    Project: EC | SABINA (731211)

    The increasing penetration of renewable energy sources creates a challenge for the stability of current power systems due to their intermittent and stochastic nature. This paper presents the field results of an efficient demand response solution for controlling and adjusting the electric demand of buildings in an energy district through the activation of their thermal mass while respecting the occupants’ thermal comfort constraints. This multilevel control approach aims to support grid flexibility during peak times by constraining the energy exchange with the grid and increasing the self-consumption of the district. The results show a great potential for increasing the self-consumption up to 37% for offices, as well as improving the indoor environment, based on real data collected from a case study in Greece.

  • Open Access
    Authors: 
    Maria Cecilia Mancini; Marianna Guareschi; Valentin Bellassen; Filippo Arfini;
    Publisher: Wiley
    Country: France
    Project: EC | Strength2Food (678024)

    International audience; In the European context, geographical indications (GIs) are tools that contribute to the achievement of rural development policy objectives. In this article, we propose that GI value chains produce positive environmental, social and economic benefits, defined as Public Goods (PGs), resulting from the rules defined in the Code of Specifications (CoS). This article reports the main results of the Strength2food H2020 project, designed to assessing the impact of GIs (through their CoSs) on agri-food system sustainability. Specifically, this report highlights that GI CoSs may generate PGs through the rules codified in CoSs presented as good practices in the production of PGs for other GI systems. Some final recommendations are proposed from the analysis of those good practices which contribute to the generation of PGs and, consequently, to the improvement of a sustainable rural development process. Case studies analysed show that generation of PGs requires both an internal and external intervention. The former intervention implies governance strategies for GI territorial systems and value chains that can improve the production of PGs. The latter intervention entails consumers and other stakeholder communication strategies to raise awareness regarding PG generation. These interventions will ultimately increase the social value of GIs.; Dans le contexte européen, les indications géographiques (IG) sont des outils qui contribuent à la réalisation des objectifs de la politique de développement rural. Dans cet article, nous suggérons que les chaînes de valeur des IG apportent, du fait des règles définies dans le Cahier des charges (CdC), des avantages environnementaux, sociaux et économiques positifs, définis comme des biens d’intérêt public (BP). Cet article rapporte les principaux résultats du projet Strength2food H2020, conçu pour évaluer l'impact des IG (au travers de leurs CdC) sur la durabilité des systèmes agroalimentaires. Plus précisément, ce rapport souligne que les CdC des IG peuvent générer des BP à travers les règles codifiées dans les CdC présentées comme des bonnes pratiques pour la production de BP, transposables à d'autres systèmes d’IG. Quelques recommandations finales sont proposées à partir de l'analyse de ces bonnes pratiques qui contribuent à la production de BP et, par conséquent, à l'amélioration d'un processus de développement rural durable. Les études de cas analysées montrent que la production de BP nécessite à la fois une intervention interne et externe. Le premier type d’intervention implique des stratégies de gouvernance pour les systèmes territoriaux et les chaînes de valeur des IG qui peuvent améliorer la production de BP. Le second type demande d'autres stratégies de communication vers les consommateurs et d’autres parties prenantes pour sensibiliser à la production de BP. Ces interventions augmenteront à terme la valeur sociale des IG.