Reducing greenhouse gas emissions and material use for passenger vehicles in Türkiye: A scenario-based analysis with material efficiency strategies

T & uuml;rkiye has not yet decoupled its economy from energy and material consumption, but aims to transition to a circular economy and become carbon neutral by 2053. The potential of energy system transformation and efficient material use has not yet been assessed for many services in T & uuml;rkiye. This study analyzes the impacts of these transformations on passenger vehicles, using the RECC model, a physical circular economy model, under two energy and three socioeconomic scenarios. In SSP1, 20% savings in 2020-2053 cumulative GHG emissions can be achieved through energy efficiency, and material efficiency can save an additional 12%. In the low demand scenario, LED, cumulative emissions reduction reaches 42%. In SSP1, cumulative material savings can be 45%, and secondary material use reaches 50% share. LED can achieve T & uuml;rkiye's targets for the transport sector, and its implementation depends on financial and R&D support to industries, infrastructure improvements, and changes in consumer driving habits.