Are algae ready to take off? GHG emission savings of algae-to-kerosene production DOI Creative Commons
Matteo Prussi,

Werner Weindorf,

Marco Buffi

et al.

Applied Energy, Journal Year: 2021, Volume and Issue: 304, P. 117817 - 117817

Published: Sept. 20, 2021

Aviation alternative fuels are perceived as an effective short-term mean to decarbonise our flights. Sustainable aviation from algae have been recently approved for commercial flights, and here we present assessment of their greenhouse gas (GHG) savings. Three case studies investigated with different plant designs cultivation strategies. The Carbon Offsetting Reduction Scheme International Aviation's Life Cycle Assessment methodology is used a guideline assess the GHG saving potential algae. approach presented allows having sound comparison other fuel production pathways. We show that strategy based on oil maximisation does not necessarily provide significant advantages in terms assessed savings fall wide range, being dependent inputs considered. In best-case scenario, up 68% can be achieved, therefore offering substantial advantage over traditional fuels. When compared kerosene bio-based feedstocks, like rapeseed, results confirm interesting alternative, provided certain conditions cultivation, such high process optimisation, nutrient recycling use renewable energy meet input demand, met. study also area potentially needed able supply large volumes raw material existing biorefinery. findings this feedstock mitigate land abandonment coasts Mediterranean basin.

Language: Английский

Budyko Framework Based Analysis of the Effect of Climate Change on Watershed Evaporation Efficiency and Its Impact on Discharge Over Europe DOI Creative Commons
Julie Collignan, Jan Polcher‬, Sophie Bastin

et al.

Water Resources Research, Journal Year: 2023, Volume and Issue: 59(10)

Published: Sept. 16, 2023

Abstract In the context of climate change, stakes surrounding water availability are rapidly intensifying. Decomposing and quantifying effects on discharge allows us to understand their impact resources better. We propose a methodology separate effect change in annual mean variables from intra‐annual distribution precipitation. It combines Budyko framework with land surface model (LSM) outputs. The LSM is used reproduce behavior 2,134 reconstructed watersheds across Europe between 1902 2010, inputs as only source change. fit one‐parameter approximation accounts for evolution precipitation ( P ) potential evapotranspiration (PET). introduce varying parameter equation, representing long‐term variations PET. To better assess changes means or , we construct synthetic forcings fixing one other. European results show that trends averages dominate due climate. second main driver PET, except over Mediterranean area, where have higher than Therefore, be addressed when looking at discharge.

Language: Английский

Citations

8
Hydrogeochemical processes as a conditioner of freshwater lenses associated with coastal deposits DOI
Galliari Maria Julieta, María del Pilar Álvarez,

Tanjal Carolina

et al.

Hydrological Processes, Journal Year: 2024, Volume and Issue: 38(4)

Published: April 1, 2024

Abstract The aim of this work was to study the processes and factors conditioning hydrochemistry freshwater lenses associated with Holocene coastal deposits in an area Argentinean Atlantic coast. For purpose, geomorphological units were mapped a shallow groundwater monitoring network established, including pre‐existing boreholes exploration wells. During construction wells, sediment samples extracted determine texture mineralogical characteristics. Four samplings carried out measure situ physicochemical parameters majority ions water. chemical data analysed considering geomorphology, lithology, water balance hydrodynamics. lithological characteristics are combined that favour preferential rainwater recharge processes. Geoforms greater topography extension (continental dunes) tend store lenses, while those lower little areal (sand sheets beach ridges) have very thin become salinized. Climate local factor determines occurs preferentially winter. This causes increases levels decrease EC. On other hand, mineralogy is conditions geochemical water–sediment interaction. Within main processes, dissolution and/or mineral weathering, CO 2(g) ion exchange presence different hydrochemical facies, where Ca‐HCO 3 facies dominates elevated geoforms, Na‐Cl ones. results obtained provided understanding condition chemistry deposits, being vital importance for management resources.

Language: Английский

Citations

3
Quantifying and communicating uncertain climate change hazards in participatory climate change adaptation processes DOI Creative Commons
Laura Müller, Petra Döll

Geoscience Communication, Journal Year: 2024, Volume and Issue: 7(2), P. 121 - 144

Published: May 24, 2024

Abstract. Participatory processes for identifying local climate change adaptation measures have to be performed worldwide. As these require information about context-specific hazards, we show in this study how quantify hazards with their uncertainties regions all around the globe and best communicate potential order identify strategies. In a participatory process on water-related biosphere reserve Germany, used freely available output of multi-model ensemble provided by Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) initiative, which provides global coverage, wide range future changes (ground)water resources. Our approach quantifying can applied worldwide regional areas also adaptations agriculture, forestry, fisheries, biodiversity. We evaluated our communicating uncertain means questionnaires that stakeholders audiences from general public two project result presentations answered. To support processes, propose use percentile boxes rather than boxplots visualizing changes. This helps they wish adapt to, depending problem (e.g., resource scarcity vs. excess) risk aversion. The is informed simple averages together model agreement sign change. Using or adapting quantification communication approach, flexible strategies should developed transdisciplinary manner, involving scientists.

Language: Английский

Citations

3
From lake to fisheries: Interactive effect of climate and landuse changes hit on lake fish catch? DOI
Shan‐e‐hyder Soomro, Muhammad Waseem Boota, Haider M. Zwain

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 258, P. 119397 - 119397

Published: June 12, 2024

Language: Английский

Citations

3
Are algae ready to take off? GHG emission savings of algae-to-kerosene production DOI Creative Commons
Matteo Prussi,

Werner Weindorf,

Marco Buffi

et al.

Applied Energy, Journal Year: 2021, Volume and Issue: 304, P. 117817 - 117817

Published: Sept. 20, 2021

Aviation alternative fuels are perceived as an effective short-term mean to decarbonise our flights. Sustainable aviation from algae have been recently approved for commercial flights, and here we present assessment of their greenhouse gas (GHG) savings. Three case studies investigated with different plant designs cultivation strategies. The Carbon Offsetting Reduction Scheme International Aviation's Life Cycle Assessment methodology is used a guideline assess the GHG saving potential algae. approach presented allows having sound comparison other fuel production pathways. We show that strategy based on oil maximisation does not necessarily provide significant advantages in terms assessed savings fall wide range, being dependent inputs considered. In best-case scenario, up 68% can be achieved, therefore offering substantial advantage over traditional fuels. When compared kerosene bio-based feedstocks, like rapeseed, results confirm interesting alternative, provided certain conditions cultivation, such high process optimisation, nutrient recycling use renewable energy meet input demand, met. study also area potentially needed able supply large volumes raw material existing biorefinery. findings this feedstock mitigate land abandonment coasts Mediterranean basin.

Language: Английский

Citations

19