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국가 기후재정의 온실가스 감축 효율성 분석: 온실가스감축인지 예산서 기반 자료포락분석
임형우(Lim, Hyung-Woo),조하현(Jo, Ha-Hyun),박상언(Park, Sangun) 한국기후변화학회 2025 한국기후변화학회지 Vol.16 No.2
This study examines the efficiency of South Korea’s national climate budget in reducing greenhouse gases (GHG), focusing on the GHG Reduction Cognitive Budget Statements from 2023 and 2024. The increasing importance of climate finance highlights the need for effective fiscal strategies to achieve carbon neutrality. Using Data Envelopment Analysis (DEA) and non-parametric tests, this research evaluates the efficiency of various fiscal programs, addressing the gap between allocated budgets and the financial requirements outlined in the national Carbon Neutrality Master Plan. The findings show that programs centered on technological innovation and private-sector participation, such as industrial GHG reduction projects and loan-based initiatives, exhibit the highest efficiency. Conversely, nature-based solutions like forest restoration and indirect mitigation projects demonstrate lower efficiency. Efficiency differences are significant across project types and funding methods, with agriculture, industry, and international reduction projects ranking highest and carbon sink projects showing the lowest efficiency. Loan-based and grant-supported programs outperform direct government-led initiatives. Despite some high-efficiency programs, the cumulative mitigation impact of these projects by 2050 represents only 1.19% of the 2030 Nationally Determined Contribution (NDC) target, emphasizing the need for improved fiscal prioritization. This study underscores the importance of integrating GHG reduction efficiency metrics into climate budget planning to maximize the impact of limited resources and advance South Korea’s carbon neutrality goals.
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임형우 ( Lim Hyung-woo ),이계한 ( Lee Kye-han ) 한국도서(섬)학회 2018 한국도서연구 Vol.30 No.2
Biomass production in forest ecosystems is determined by the amount of carbon assimilated through canopy photosynthesis and the efficiency with which assimilated carbon is partitioned into woody biomass. These factors are dependent on environmental variables, such as water and nutrient availabilities. In this study, we investigated biomass production and the mechanism responsible for biomass production in adjacent two stands, a Pinusdensiflora and a Styrax japonica, based on a combination of measurements ontree dimension, increment core analysis, and tree harvesting, and on a mass-balance method for estimation of total belowground carbon flux. In the P. densiflora stand, aboveground net primary production (ANPP) was 791 g C m<sup>-2</sup> yr<sup>-1</sup>, accounting for 42% of gross primary production (GPP), whereas in S. japonica stand, ANPP was 962 g C m<sup>-2</sup> yr<sup>-1</sup>, 38% of GPP. Both ANPP and GPP were responsive to soil moisture content without changing the ratio of ANPP to GPP, but only for P. densiflora stand, suggesting species-specific growth response to environmental conditions. Our results stress a need of further investigations on species-dependent growth responses to spatiotemporal environmental variations related with climate changes in order to optimize the value between production and biodiversity in a forest ecosystem.
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배출권 과다배분 하에서의 탄소효율성과 기업성과의 관계 분석
임형우(Lim, Hyung-Woo),김재혁(Kim, Jae-Hyeok),신동현(Shin, Dong-Hyun) 한국산업경제학회 2020 산업경제연구 Vol.33 No.6
배출권거래제 1차 계획기간 동안 모든 배출권이 무상배분 되면서, 실제 배출량보다 배출권의 수량이 더 많은 현상이 발견되었다. 이러한 배출권 과다배분은 기업에게 불로소득(windfall profit)을 제공하며, 기업의 탄소효율성 개선을 억제할 수 있다. 본 연구는 배출권거래제에 참여하는 363개의 상장기업을 대상으로, 배출권거래제 참여 이후 탄소비효율적인 기업의 수익률이 유의적으로 더 높았는지를 살펴보았다. 분석결과, 배출권거래제 시행 직후 탄소비효율적인 기업의 평균 수익률이 더 높았으며, Fama-MacBeth 분석 및 GRS 검정 등을 살펴보더라도 이러한 효과는 유의했다. 이상의 결과를 토대로 볼 때, 무상배분 중심의 배출권거래제 구조에서 과다한 배출권이 배분된다면 기업의 탄소효율성 개선을 저해할 수 있다. 즉, 탄소효율성이 낮은 기업들이 오히려 수익을 얻을 수 있는 역진적인 문제가 발생할 수 있다. During the first phase of the Korean Emission Trading Scheme, all emission rights were allocated free of charge, which result into overallocation of rights. This overallocation provides an windfall profit to some firms and can inhibit the improvement of their carbon inefficiency gain. We anlayze 363 listed companies participating in the ETS to see if the return on carbon-efficient companies was significantly higher after their participation. The result shows that the average return on carbon-efficient firms was higher immediately after the ETS was implemented, and this result holds with the Fama-MacBeth analysis and the GRS test. Based on the above result, we conclude that excessive distribution of emission rights in the ETS by free allocation may hinder companies’ carbon efficiency improvements. In other words, regressiveness problem which companies with low carbon efficiency of companies with low carbon efficiency enjoy higher profit exists in the Korean ETS.
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임형우 ( Hyung Woo Lim ),신지남 ( Ji Nam Shin ),강현욱 ( Hyun Wook Kang ),유지원 ( Ji Won Yoo ),김진석 ( Jin Seok Kim ) 대한류마티스학회 2006 대한류마티스학회지 Vol.13 No.1
Overlap syndrome is a combination of major features of more than one rheumatic disease present in the same patient such as rheumatoid arthritis (RA), systemic lupus erythematosus, systemic sclerosis, and polymyositis. Polymyositis and RA are independent rheumatic diseases that may have a variety of overlapping clinical, radiological, and pathological manifestations according to different accepted criteria. Overlap syndrome with RA and polymyositis is rarely reported worldwide. We reported a rare case of overlap syndrome RA and polymyositis with relevant literatures.
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치핵 제거술을 위한 안장 마취 시 발생한 저혈압 및 서맥
종요현 ( Yong Hyun Cho ),홍성기 ( Sung Gi Hong ),이동현 ( Dong Hyun Lee ),유지웅 ( Ji Woong Yu ),윤묘섭 ( My Sup Yun ),임형우 ( Hyung Woo Lim ),전성현 ( Sung Hyun Cheon ) 경희대학교 경희의료원 2010 慶熙醫學 Vol.26 No.2
Comparing with spinal anesthesia, saddle block anesthesia has little hemodynarnic effect and side effect. So saddle block anesthesia is widely practiced technique for simple anorectal area surgery. We experienced severe hypotension and bradycardia during saddle block anesthesia. And the patient was immediately treated and recovered without any adverseeffect. We report our clinical experience, including brief review of the relevant literature.
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