Mustafa Tevfik KartalDilvin TaşkınMuhammad ShahbazDervis KirikkaleliSerpil Kılıç DeprenTaşkın, DilvinKirikkaleli, DervişKılıç Depren, SerpilShahbaz, MuhammadDepren, Serpil KilicKartal, Mustafa Tevfik2025-10-06202403014797, 109586300301-47971095-863010.1016/j.jenvman.2024.1209712-s2.0-85191156479https://www.scopus.com/inward/record.uri?eid=2-s2.0-85191156479&doi=10.1016%2Fj.jenvman.2024.120971&partnerID=40&md5=dcd693962eee5e07d3355bfa63fd3cd2https://gcris.yasar.edu.tr/handle/123456789/8207https://doi.org/10.1016/j.jenvman.2024.120971Consistent with the increasing environmental interest the clean energy transition is highly critical to achieving decarbonization targets. Also energy security has become an important topic under the shadow of the energy crisis. Accordingly countries have been trying to stimulate clean energy use to preserve the environment and ensure energy security. So considering the leading role of economic size and volume of energy use the study examines the USA to define whether energy transition helps decrease energy security risk (ESR) and curb CO<inf>2</inf> emissions. So the study applies a disaggregated level analysis by performing quantile-based models for the period from 2001/Q1 through 2022/Q4. The results demonstrate that (i) the energy transition index decreases environmental ESR at higher quantiles and reliability ESR at lower and middle quantiles whereas it is not beneficial in declining economic and geopolitical ESR, (ii) energy transition curbs CO<inf>2</inf> emissions in building and transport sectors at lower quantiles whereas it does not help decrease CO<inf>2</inf> emissions in industrial and power sectors, (iii) energy transition is mostly ineffective on ESR whereas it is highly effective in curbing CO<inf>2</inf> emissions in all sectors except for transport across various quantiles as time passes, (iv) the results differ according to the aggregated and disaggregated levels, (v) the results are consistent across main and alternative models. Hence the study highlights the dominant effect of energy transition in curbing sectoral CO<inf>2</inf> emissions rather than easing ESR. Accordingly the study discusses various policy implications for the USA. © 2024 Elsevier B.V. All rights reserved.Englishinfo:eu-repo/semantics/closedAccessCo2 Emissions, Energy Security, Energy Transition, Quantile-based Models, Usa, Carbon Dioxide, Carbon Dioxide, Energy Policy, Energy Utilization, Industrial Emissions, Clean Energy, Co 2 Emission, Decarbonisation, Energy Crisis, Energy Transitions, Energy Use, Environmental Energy, Quantile-based Model, Security Risks, Usa, Energy Security, Carbon Emission, Energy Use, Environmental Modeling, Risk Assessment, Security, Article, Carbon Dioxide Emission, Energy, Reliability, United States, Theoretical Model, Carbon Dioxide, Carbon Dioxide, Models TheoreticalCarbon dioxide, Energy policy, Energy utilization, Industrial emissions, Clean energy, CO 2 emission, Decarbonisation, Energy crisis, Energy transitions, Energy use, Environmental energy, Quantile-based model, Security risks, USA, Energy security, carbon emission, energy use, environmental modeling, risk assessment, security, article, carbon dioxide emission, energy, reliability, United States, theoretical model, carbon dioxide, Carbon Dioxide, Models TheoreticalCO 2 EmissionsUsaEnergy TransitionQuantile-Based ModelsEnergy SecurityCO2 EmissionsArticle