Communication Dans Un Congrès Année : 2025

France’s 2050 energy pathways: Evaluating environmental impacts through the lens of Decent Living Standards

Résumé

The French agency for ecological transition envisages four prospective scenarios aiming to achieve carbon neutrality by 2050. In this context, ambitious strategies are established to decarbonize the natural gas network by increasing biomethane production from anaerobic digestion, pyrogasification, and power-to-methane. This work explores the implications of this shift on France's absolute environmental sustainability performance, evaluating the impact of this transition on achieving decent living standards within the safe operating space assigned to France. Projected supply and demand scenarios of methane were used to create a tailor-made version of the ecoinvent database for 2020, 2030, and 2050 using the premise python package. Modeled supply chains fully capture the life-cycle environmental impacts of the gas network under different technological choices and advancements. Changes encompass increasing the proportion of biomethane, alongside considering energy efficiency enhancements, such as the reduction of methane leaks in the anaerobic digestion. French markets were combined with various integrated assessment models to consider future changes in natural gas imports. Life-cycle environmental impacts of decent living standards accomplishment were quantified from 2020 to 2050, considering proposed transition scenarios. Decent living standards cover housing, nutrition, hygiene, shelter, clothing, mobility, collective services, communication, and education. The different scenarios quantify the remaining safe operating space to be shared among other human activities in France while achieving decent living standards until 2050. This work provides a comprehensive life-cycle assessment model of the current and future gas network, allowing users to directly implement it as background life-cycle inventory. Our findings underscore the importance of considering technological advances when assessing provisioning systems, such as energy, while addressing human needs to assign carrying capacities.

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Dates et versions

hal-05282276 , version 1 (25-09-2025)

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  • HAL Id : hal-05282276 , version 1

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Gonzalo Puig-Samper, Joanna Schlesinger-Martinat, Julie Clavreul, Anne Prieur-Vernat, Natacha Gondran, et al.. France’s 2050 energy pathways: Evaluating environmental impacts through the lens of Decent Living Standards. 1st International Conference on Absolute Sustainability : From Less Bad to Good Enough, Sep 2025, Helsingør, Denmark. ⟨hal-05282276⟩
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