Clean Technologies and Environmental Policy

Papers
(The TQCC of Clean Technologies and Environmental Policy is 7. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-11-01 to 2025-11-01.)
ArticleCitations
Constructing solid waste-derived carbon fiber with self-doped Ti3+/TiO2 (SWCFs/Ti3+/TiO2) heterojunction for photocatalytic CO2 reduction121
Engine performance study for solketal-gasoline fuel blend in a four-stroke SI engine100
The potential of the P-graph for optimizing public service processes77
Study on a transversal–longitudinal ventilation structure for the caged chicken house57
Correction to: Do Energy Resources matter for Growth Level? The dynamic effects of different strategies of renewable energy, carbon emissions on sustainable economic growth57
Correction: The effect of building orientation on energy efficiency57
A sustainable solution: mitigating sulphur dioxide emissions through adsorption on chemically modified iron oxide nanoparticles55
Nanozymes: advance enzyme-mimicking theragnostic tool: a review54
Water quality of harvested rainwater from asbestos cement roofs and its suitability for irrigation51
Activation of nanoparticles of nickel ferrite by divalent metal ions co-doping for the methyl orange dye’s photocatalytic degradation: a kinetic and adsorption isotherm study50
Green fabrication of Ag–Ni–Mn-Zn nanoparticles from watermelon peels and its antioxidant, dye degradation and molecular docking studies46
Black gram husk-derived carbon dots: characterization and catalytic dye reduction activities46
Impact of nanomaterials on leather: a nano-Saga from processing to application45
The impact of energy consumption permit trading scheme on green development efficiency: firm-level evidence in China43
Experimental research on the impact of air-conditioning on solar inverter performance in PV systems under tropical conditions43
Performance evaluation of cement-stabilized coalmine overburden-furnace slag-fly ash mixes as economical and sustainable base course material for flexible pavement42
A general risk optimization model for green technology deployment under neutrosophic uncertainty40
Multi-criteria analysis of barriers to the use of green building technologies in residential buildings: a case study of Mashhad, Iran38
Factors affecting renewable energy technology adoption policies of 50 states and district of Columbia in the USA37
A SWOT-AHP analysis on biodiesel as an alternative future marine fuel37
Research on carbon neutral key technology in the iron and steel industry based on hypergraph topological characteristics36
Assessing eco-technological innovation efficiency using DEA approach: insights from the OECD countries34
Evaporative caustic soda recovery in textile mercerization: environmental sustainability and economics34
Material flow of nickel in nickel metal hydride batteries waste and possible circularity improvement in Thailand33
Stability improvement of laccase for micropollutant removal of pharmaceutical origins from municipal wastewater33
Optimal capacitated multi-product robust cement supply chain Network design considering carbon emission policies33
Degradation of amoxicillin using CoFe2O4@three-dimensional TiO2@graphene aerogels composite: kinetic, reusability, mineralization, degradation pathway, and toxicity assessment32
Melt processing of biodegradable poly(butylene succinate) (PBS)—a critical review32
Sustainability and power generation: a comprehensive analysis of the Brazilian power sector’s energy and exergy aspects31
Thermodynamic and economic evaluation and optimization of the applicability of integrating an innovative multi-heat recovery with a dual-flash binary geothermal power plant31
Toward dynamic sustainability assessment in the digital age30
Development of emission reduction management scenario, techno-economic and environmental assessment at Iranian petrochemical companies30
Pretreatment of skins with masked silicates for low-pollution emission tanning technology29
Evaluating carbon footprint calculators: a comprehensive assessment framework29
The investigation of treatment design parameters on carbon integration networks29
Combined theoretical and experimental approaches for bacterial aggregation studies towards the improvement of bioremediation processes28
Achieving carbon neutrality through digital infrastructure and public debt27
The impacts of food chains: are alternative food networks sustainable?27
Bibliometric review of carbonaceous-based sorbent for hydrogen storage27
Synthesis and performance characterization of green desiccant from cockle shell and marble waste27
A system dynamic model to optimize the supply chain of assembly line heterogeneous products with uncertain demand26
Exploring influential parameters affecting residential building energy use: advancing energy efficiency through machine learning26
Recent advancement in production of bioethanol from waste biomass: a review26
Energy management of interconnected electric vehicle charging stations with hybrid renewable energy source—a comprehensive review26
Eco-friendly asphalt mixtures: examining the performance of PE pyrolytic wax-modified bitumen for road construction26
Research on biochar remediation of heavy metal contaminated soil based on CiteSpace visual analysis26
Synthesis of green magnetic hybrid adsorbents and their application for reactive red methyl 4 BL dye removal26
On the replacement of traditional stabilizers by guaiacol in environmentally safe nitrocellulose-based propellants26
Coordination of bioenergy supply chains under government incentive policies: a game-theoretic analysis26
Greener nanomaterials and their diverse applications in the energy sector26
Sustainable utilization of incinerated paper mill sludge ash for the manufacture of building bricks25
A green approach for modification and functionalization of wool fabric using bio- and nano-technologies25
Evaluation of strength and durability of compacted bauxite tailings treated with cement25
Recovery of catalytic metals from leaching solutions of spent automotive catalytic converters using plant extracts25
Comparative analysis of storage modules under different dispatch strategies for an optimum decentralized hybrid energy solution: a case study of a remote Indian village25
The economics of clean coal power generation with carbon capture and storage technology in China25
Spatiotemporal evolution characteristics and influencing factors of land use carbon emissions in the Yangtze River Delta region24
Decarbonization of EU energy sector: techno-feasibility analysis of 100% renewables by 2050 in Cyprus24
Iranian steel value chain: advantageous but unsustainable24
Potential and health impact assessment of air pollutant emission reduction: a case study of China24
Sustainable recycling of paddy straw through development of short-fiber-reinforced composites: exploring gainful utilization of agricultural waste24
Bio-electrochemical production of hydrogen and electricity from organic waste: preliminary assessment24
Understanding how climate preferences, environmental policy stringency, and energy policy uncertainty shape renewable energy investments in Germany23
A review on the handling of discounting in eco-efficiency analysis23
Reduction of carbon intensity of electrification by reservoir-to-wire integration with CO2 capture and storage: conceptual design and analysis23
A graphical method for Heat Exchanger Storage Network synthesis to decarbonise the non-continuous industrial processes22
Geotechnical properties of problematic expansive subgrade stabilized with guar gum biopolymer22
Environmental life cycle analysis of manufacturing options for humanitarian supplies: drinking water containers22
Optimization of electroactivated persulfate oxidation for whey treatment: integration of Box–Behnken design and PROMETHEE methodologies22
Correction: Recent advancement in production of bioethanol from waste biomass: a review22
Measurement, influencing factors and prediction on carbon emission performance of countries along the Belt and Road22
Remediation of pseudomonas aeruginosa and landfill leachate biofilms with electromagnetic fields21
Evaluation of physico-chemical characteristics of biochar produced from red bell pepper waste biomass21
Sustainable planning of empty agrochemical containers valorization21
Environmental footprint of gold production: a focus on sulfide mineral processing21
Green technology transfer driven by environmental policies: A fuzzy-set qualitative comparative analysis approach21
Performance analysis of paver blocks manufactured with an incorporation of waste from the disposable straw industry20
Electric vehicle battery charging framework using artificial intelligence modeling of a small wind turbine based on experimental characterization20
Oxygen vacancies engineering of ternary Co3O4/rGO/PANI composite for environmental and biomedical applications20
Comprehensive review and future research directions on using various lanthanum-based adsorbents for selective phosphate removal20
Enhancing the efficiency of hybrid parabolic and parabolic trough concentrators for dual solar applications20
Upgradation of highly efficient and profitable eco-friendly nanofluid-based vegetable oil prepared by green synthesis method for the insulation and cooling of transformer19
Environmental regulations and government support drive green innovation performance: role of competitive pressure and digital transformation19
Medium-term forecast of multi-energy photovoltaic/biogas/battery system’s operation adopting smart energy management strategy19
An optimized mix for the manufacture of sustainable aerated concrete blocks using waste rubber powder19
Coupling reverse logistics and dynamic modeling for waste management: a food service provider case study19
Recovery of vanadium from spent refinery catalysts: optimizing the process and analyzing the environmental impact19
Exploring the role of ligands in metal phytoremediation and its influence on metal availability and toxicity19
Improving hydrophilicity and comfort characteristics of polyester/cotton blend fabric through lipase enzyme treatment19
Economic and cross-media effect analyses of best available techniques for caustic recovery from mercerization textile wastewater19
Implementation of green public procurement in public transport: criteria analysis and proposals evaluation19
From regional integrated development toward sustainable future: evaluating the Belt and Road Initiative’s spillover impact between tourism, Fintech and inclusive green growth18
Assessing the efficacy of green credit policy in fostering green innovation in heavily polluting industries18
Dynamic decision-making and coordination of low-carbon closed-loop supply chain considering different power structures and government double subsidy18
Agricultural low-cost waste adsorption of methylene blue and modelling linear isotherm method versus nonlinear prediction18
Impacts of electric vehicle charging station with the integration of renewable energy with grid connected system: a hybrid technique18
Investigating the recovery of ferrous phosphate in a fluidized bed crystallizer by response surface methodology17
Energy efficiency labels and urban residents’ intention to purchase energy-efficient household appliances: an empirical study based on the theory of planned behavior17
Ultrasound assisted bio-acid leaching of sewage sludge ash for phosphorus extraction using lemon juice: optimization and ecological risk assessment17
Green synthesis of zinc oxide nanoparticles using Albizia procera leaf extract: Degradation of methylene blue dye via Advanced Oxidation Process and Box–Behnken Design17
“How effectively does the NARDL approach analyze and interpret the modern dynamics of entrepreneurship, financial inclusion, and environmental sustainability?” A new look at China’s economy17
An innovative application of blast furnace slag: utilization as catalysts in the microwave-assisted catalytic pyrolysis of date seeds for activated carbon synthesis17
Comparative study of hydrogen production from seawater and groundwater using PV–TEG17
Essential oils from pelargonium graveolons as highly effective sustainable corrosion inhibitors for mild steel in acidic medium: electrochemical, and theoretical studies17
Mechanistic understanding of synergistic bacterial consortium-mediated biodegradation of nylon-6,6 microplastics for sustainable environmental remediation17
Decommissioned facilities for renewables harvesting—recycling and environmental issues16
NOx emission reduction in low viscous low cetane (LVLC) fuel using additives in CI engine: an experimental study16
Performance analysis of the thermal flux effect and exergy analysis of a passive evaporative cooled double jacket wet clay-walled storage structure for pre-cooling of tomatoes16
A comprehensive analysis on cost, combustion, performance and emissions for diesel engine fueled with preheated esters of waste cooking oil16
Multifaceted optimization of biochar for removing atenolol and sulfamethoxazole from aqueous solutions through response surface methodology16
The impact of green credit policy on heavily polluting enterprises’ financial risk: evidence from China16
Modeling the kinetics of hydrodeoxygenation of Jatropha curcas L. oil to produce green hydrocarbons by hydrotreating process16
A confirmatory approach for sustainable utilization of silt fraction from quarry sand mining as flowable fill for backfilling applications15
Implementation of hybrid wind and solar energy in the transportation sector to mitigate global energy and environmental vulnerability15
Investigation on the thermal behavior of g-C3N4/MoS2 nanocomposite produced by microwave-assisted method15
Influence of waste-to-energy plant integration on local immission load15
Linking sustainability reporting and energy use through global reporting initiative standards and sustainable development goals15
Role of extractives in biomethane production: characterization and comparison of different varieties of rice straw15
The implications of forest resources depletion, agricultural expansion, and financial development on energy demand and ecological footprint in BRI countries15
Highly active and cheap graphite/polytetrafluoroethylene composite coating cathodes for electrogeneration of hydrogen peroxide15
The role of automated technologies and industrial mechanisms in upgrading photovoltaic panel performance15
Immobilized ionic liquids/deep eutectic solvents in carbon capture: current progress and future potential15
A novel solar disk chamber reactor for agricultural waste recycling and biochar production15
Sustainable stabilization of infinite slopes in the lesser Himalayan region using nano-silica: aligning with United Nations' Sustainable Development Goals15
Estimation of energy, economic and environmental efficiency for renovation of building heating system15
Band gap engineering of Ag/CeO2/Co3O4@biochar composite with superior light harvesting for photocatalytic removal of Diclofenac and Naphthalene from effluents15
Green synthesis of iron oxide nanoparticles from Calotropis procera latex: an eco-friendly catalyst for biodiesel production from Calotropis procera seed oil15
Gaseous nitrogen as carrier in polyester corona charging powder coating: advancing process quality, efficiency, and environmental sustainability15
Sustainable development challenges in Bangladesh: an empirical study of economic growth, industrialization, energy consumption, foreign investment, and carbon emissions—using dynamic ARDL model and fr14
Correction: Strong, lightweight, thermally stable, and hydrophobic sustainable structural composites produced from coal-based waste and polymer-derived SiOC ceramics14
Environmental sustainability assessment of single-family modular homes using performance benchmarks of conventional homes: case studies in British Columbia, Canada14
Revealing the multiple impact mechanism of digital economy on renewable energy development in China14
Assessing the impact of manufacturing servitization on the urban green development efficiency in China14
Reduction of CO2 emissions by recycling low-potential heat from the Benfield CO2 removal process at a natural gas hydrogen production plant14
Green hydrogen production via chemical looping: fuel reactor modeling with iron-based oxygen carriers14
Gas-to-liquid technology for sustainable energy development in Africa: a modular approach to stranded gas conversion14
Investigating innovative techniques for biochar modification to enhance the removal of heavy metals from aqueous environments: a comprehensive review14
Overview of the current activities related to deep geothermal energy utilisation in the Republic of Croatia14
Environmental assessment coupled with machine learning for circular economy14
Citrus limetta peels derived carbon dots as highly active carbocatalyst for carbon–carbon bond formation14
Modeling and planning operation of directly coupled solar photovoltaic pump operated drip irrigation system with a case study14
The effect of dynamic wireless charging systems on electric vehicle activation and sustainability14
Effective thiocyanate biodegradation mediated by bacteria associated to Argentinean mining areas potentially applicable to wastewater biotreatment14
The global plastic waste challenge and how we can address it14
Upgrading of waste plastic pyrolysis product via aqueous-phase reforming with glycerol and various catalysts13
Mining of potential Arthrospira platensis antimicrobial metabolites to tackle honey bee pathogens13
Application of bacterial feather hydrolysates as biofertilizers in growing leafy vegetables: yield, nutritional, phytochemical, antioxidant and hepatoprotective profiles13
An irrigation scheduling algorithm for sustainable energy consumption in pressurised irrigation networks supplied by photovoltaic modules13
Towards green development: does carbon emission trading policy matter?13
Strategic carbon reduction in competitive new and remanufactured product supply chains: impact of carbon quotas and consumer low carbon sensitivity13
Effect of prefabricated technology on ecological footprint in China: a perspective of land aggregation degree13
On the road to sustainable development: the role of ICT and R&D investments in renewable and nuclear energy on energy transition in Germany13
Analysis of low-carbon comprehensive energy system scheduling considering multiple uncertainties13
Revealing unintended consequences of circular economy indicators in environmentally-extended input–output analysis13
Market-incentive environmental regulation and performance of new energy vehicle enterprises: evidence from the dual credit policy in China13
On economic aspect of passively cooled silicon-based photovoltaic panels13
Assessment of optimal fuel and drive mix for automobile sector decarbonization in India: a scenario analysis of 203512
Investigating environmental and economic aspects of sustainability by recycling PET plastic bottles: A game-theoretic approach12
Investigating the impact of chitosan nanocarrier for different dilution factors of Cornus circinata for bioremediation and antimicrobial applications12
Digital water: artificial intelligence and soft computing applications for drinking water quality assessment12
Macroeconomy driven by climate change12
Multi-period automated targeting and optimisation for net zero12
Cellulose nanofibrils/polyvinyl alcohol gel microspheres loaded with nickel nanoparticles as catalysts to reduce Cr (VI) by formic acid12
Electrification pathways toward transport decarbonization with a systematic review12
Environmental innovations and energy security: novel insights from the European region12
Do environmental target constraints promote the green technology innovation of Chinese enterprises?12
Special issue section of Clean Technology and Environmental Policy dedicated to 16th SDEWES conference12
Conversion of crude glycerol to biohydrogen by locally isolated Klebsiella pneumoniae via dark fermentation12
Mathematical modeling of interconnected absorber-desorber hollow-fiber membrane contactors for CO2 capture using MEA solution12
Global analysis of socioeconomic and environmental indicators and sources of electrical energy12
Simulation and multi-objective optimization of liquid hydrocarbons production by coupling Blast Furnace Gas with Coke Oven Gas of steelwork12
The impact of financial agglomeration and the transformation of energy consumption structure on the regional green innovation12
Conventional low-density particleboards produced from Mauritia flexuosa and Eucalyptus spp. wood12
Can the opening of high-speed rail reduce environmental pollution? An empirical research based on difference-in-differences model12
Investigating the pilot-scale performance of a hydroponic nutrient solution as potential draw solution for fertilizer drawn forward osmosis and hydroponic agriculture of lettuce12
Anodic oxidation as promoting technology for treatment and reuse of industrial textile effluent using ruthenium-doped lead dioxide (PbO2) anode12
Eco-friendly zinc oxide nanoparticles from Moringa oleifera leaf extract for photocatalytic and antibacterial applications11
Performance of a novel hybrid membrane bioreactor (HMBR) treating synthetic dairy wastewater: assessment of coupled mechanical removal sections and MBR11
Statistical investigation of wave power potential in the North Aegean Sea11
The impact of industrial intelligence on green development: research based on intra- and inter-industry linkage effect11
Decarbonizing the U.S economy: the roles of renewable energy, technology innovation, human capital, and green growth11
Hydrogen-enriched hydrazine hydrate biofuels for superior performance and emission reduction in HCCI engines toward sustainable combustion11
Natural esters as sustainable alternating dielectric liquids for transformer insulation system: analyzing the state of the art11
A novel clean biopolymer-based additive to improve mechanical and microstructural properties of clayey soil11
Performance evaluation of agro-waste (sugarcane bagasse ash) for MB dye effluents removal under UV and dark environmental conditions: A cost-effective approach11
Increased biomass and biomolecule productivity of Spirulina sp. LEB 18 cultivated with CO2 adsorbent nanofibers11
Efficient ozone decomposition over nickel-modified amorphous MnOx catalysts11
Do Energy Resources matter for Growth Level? The dynamic effects of different strategies of renewable energy, carbon emissions on sustainable economic growth10
Scenario-based modelling of waste generation and separation potential at the municipal level10
Preparation, characterization, and performance of potential stainless steel electrodes modified with immobilized semiconductors for persistent organic pollutants via photoelectro-Fenton process10
Risk assessment of sugarcane bagasse pellet plant equipment using hybrid multi‑criteria decision‑making techniques to reduce environmental hazards10
Investigating the effect of Persian gum biopolymer on the properties of high-plasticity clay as pavement base using nondestructive method10
Public policies and their influence on the development of the wind industry: comparisons between Brazil and China10
How can green industry policy facilitate carbon emissions reduction? Evidence from China’s National Eco-Industrial Demonstration Parks10
Evaluation of the addition of wheat residues in the production of Pinus oocarpa agglomerated panels10
Green financing and climate change: challenges and regulatory mechanisms in Malaysia and Indonesia10
Experimental study on wood chips gasification over Ni/dolomite10
Thermal energy transfer for green urban development: numerical investigation on the heat transfer and flow noise in heat exchangers with different helical and segmental baffles10
A Bi-level programming approach to design a sustainable supply chain network under uncertainty: a real-life case study10
Carbon footprint assessment and emission reduction analysis of wood flooring based on life-cycle assessment: six cases from China10
The impacts of ESG policy on clean technology innovation: a gateway to promote renewable energy transition10
Are cleaner energy and financial technologies needed? Contagion and causality evidence between global fintech markets, energy consumption, and environmental pollution10
Preparation and characterization of composite sheets from solid leather waste with plant fibers: a waste utilization effort10
Economics, environmental foot print and sustainability of community scale solar desalination plant in water scarce Somalia coastal regions10
Impact of financial technology innovation on sustainable transition finance: the moderating role of globalization in BRI, advanced and emerging economies10
Taguchi’s approach for optimization of photocatalytic process for greywater treatment and energy harvesting using ZnO/TiO2/Ti heterojunction photoanode10
Implementation of sustainable development goals in the cosmetics industry based on the example of cleansing cosmetics containing a surfactin-rich digestate extract10
Improvement of effluent quality and operational cost reduction of a wastewater treatment plant using intelligent computational hybrid control schemes10
Create or squeeze out? The effect of environmental protection tax on labor demand and labor demand transfer: evidence from China10
Forecasting solar energy consumption using a fractional discrete grey model with time power term10
Recycling of steel slag as an alkali activator for blast furnace slag: geopolymer preparation and its application in composite cement10
Biosynthesis and potential application of sustainable lignocellulolytic enzymes cocktail for the development of eco-friendly multifunctional cellulosic products10
Bleaching terry fabric in supercritical carbon dioxide medium: a sustainable solution10
Optimum operations and performance comparison of CO2-propane and CO2-R152a mixture-based transcritical power cycles recovering diesel power plant waste heat10
Optimizing simultaneous energy management for slow- and fast-charging electric vehicles: a hybrid approach9
Green technology, digital transformation, and energy efficiency: driving carbon reduction and waste management innovation in G20 Countries9
Development of multipurpose biomass-derived adsorbents using Coccinia grandis for removal of contaminants9
Comprehensive assessment of low-carbon development and exploration of low-carbon transformation paths in Chinese cities9
Decay of fibers of different sizes during reuse and effect of microwave puffing9
Particulate matter 2.5 air pollution mitigation strategy: the role of green investment, digitalization, and renewable energy in the organization for economic co-operation and development (OECD) countr9
Marginal abatement costs for GHG emissions in Canada: a shadow cost approach9
A methodology to characterize energy consumption in small and medium-sized enterprises at national level in European countries9
The dual-effect of the CO2 capture efficient by red mud under atmospheric pressure and synergistic de–alkalization9
Sustainability analysis and exergy return on investment of a dual-chamber solar PV-powered evaporative cooling system based on conventional and extended exergy approach9
Enhancing photovoltaic/thermal performance with perforated tube within cooling water duct9
Experimental investigation of using nanolubricant containing copper nanoparticles on fuel consumption, emission, and thermal behavior of a single-cylinder SI engine during warm-up period9
Correction: Analysis of sugarcane production and transportation in Hoya del Río Suárez from a life cycle perspective9
Antimicrobial and UV protection finishing of cotton fabric with copper nanoparticles synthesized using S.cumini leaf extract9
Performance of environmentally friendly biopolymer-natural fiber on post-freeze–thaw behavior on silty sand: macro- and micro analysis9
Using waste to treat waste: clean production of erdite/zeolite composite flocculant from groundwater treatment sludge for real electroplating wastewater treatment9
Comparative life cycle assessment of synthesis routes for cathode materials in sodium-ion batteries9
A holistic evaluation of wheat producers in the Eastern Mediterranean Region of Türkiye using technical efficiency and sustainability metrics9
Digital twin modelling of lettuce growth under extreme earth conditions on earth: a very first step to plant growth in outer space9
Hydrogen in the energy transition: some roles, issues, and questions9
Recycling of solar cells from photovoltaic modules via an environmentally friendly and controllable swelling process by using dibasic ester9
Soft computing techniques to predict the compressive strength of green self-compacting concrete incorporating recycled plastic aggregates and industrial waste ashes9
Nonlinear optimization of biomass fueled combined heat and power boilers in district heating systems in Japan8
Sustainable and equitable decarbonization8
Development of novel fiber-reinforced eco-friendly concrete: application in geopolymer concrete pipes infrastructure systems8
Carbon emissions mitigation methods for cement industry using a systems dynamics model8
Hybrid optimization technique-based maximum power point tracking for single-stage grid-connected PV systems8
A life cycle assessment of guar agriculture8
Advancing transitional green technologies and decarbonization: a generalized method of moment approach for sustainable economic and environmental system8
Strengthening potential of xanthan gum biopolymer in stabilizing weak subgrade soil8
Physico-chemical characterization of walnut shell biochar from uncontrolled pyrolysis in a garden oven and surface modification by ex-situ chemical magnetization8
Economic modelling and comparative analysis of scrubber technologies for various ship types utilising different marine fuels8
Impact of temperature/diurnal conditions, refuelling quantity and prefill volume behaviour on two-wheeler refuelling emission8
Particulate emissions from biomass power plants: a practical review and measurement uncertainty issues8
River pollution in India: exploring regulatory and remedial paths8
Porous 3D printed concrete beams show an environmental promise: a cradle-to-grave comparative life cycle assessment8
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