• 한국환경보건학회지
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• 제34권5호
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• pp.343-350
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• 2008

Quantifying greenhouse gas (GHG) emissions in the waste sector is important to evaluating measures for reduction of GHG emissions. To forecast GHG emissions and identify potential emission reduction for GHG emissions, scenarios applied with environmental policy such as waste reduction and structural change of waste treatment were developed. Scenario I estimated GHG emissions under the business as usual (BAU) baseline. Scenario II estimated GHG emissions with the application of the waste reduction policy while scenario III was based on the policy of structural change of waste treatment. Scenario IV was based on both the policies of waste reduction and structural change of waste treatment. As for the different scenarios, GHG emissions were highest under scenarios III, followed by scenarios IV, I, and II. In particular, GHG emissions increased under scenario III due to the increased GHG emissions from the enhanced waste incineration due to the structural change of waste treatment. This result indicated that the waste reduction is the primary policy for GHG reduction from waste. GHG emission from landfill was higher compared to those from incineration. However, the contribution of GHG emission from incineration increased under scenario III and IV. This indicated that more attention should be paid to the waste treatment for incineration to reduce GHG emissions.

• 한국시스템다이내믹스연구
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• 제14권1호
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• pp.55-68
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• 2013

It is necessary to evaluate the greenhouse gases (GHGs) reduction policy by central and regional governments to set up the suitable GHG emissions measures. Quantitative, qualitative and synthetic methods have been adopted by previous researches to estimate GHG reduction policy. However, these methods mostly focused on the results of the reduction policy, rather than understanding and fixing the integrated structures of GHG emissions. In this research, System Dynamics(SD) was applied to 1 million green homes program, self-carfree-day system and carbon point program. The results showed that SD analyses could be appliable for the estimation of GHG reduction policy by developing the feedback loops and dynamic simulation model. SD can be consider as a supplementary tool to estimate the GHG reduction policies through the recognition of the structure in complex real system.

• 경영과학
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• 제33권4호
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• pp.17-31
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• 2016

Waste sector has been a target of abatement policies by the most governments, even though its greenhouse gas (GHG) emission is not so high, since it is related to almost of other sectors. This study propose new GHG calculation equations which resolves logical contradiction of IPCC GL (Intergovernmental Panel on Climate Change Guideline) equations by including waste-to-energy effects. According to two GHG calculation equations, GHG emission inventory and BAU by the year 2050 have been computed. And GHG abatement potential and marginal cost for the five abatement policies carefully selected from the previous researches have been calculated for the year 2020. The policy that makes solid fuel like RDF from flammable wastes and uses them as combustion fuel of electricity generations has been found to be the most efficient and effective one among five policies. The cumulative abatement amount when five policies not mutually exclusive are applied sequentially has been reckoned.

• 한국대기환경학회지
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• 제21권6호
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• pp.561-571
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• 2005

To introduce an emissions trading system for GHG that currently have no reduction requirements, the following should be considered as priorities: eliciting the participation of the industrial sector and linking GHG emission trading systems to the emissions trading system (implemented from July 2007) that has become part of national policy with the enactment of the Special Act. Two directions can serve as viable alternatives in that regard. One is a baseline-and-credit method based on incentive auctioning. This has the advantage of inducing participation through economic incentives without a reductions commitment. The downside of this method is that it requires vast investments, as well as the fact that reaching an agreement between participants and the government to decide an objective baseline is difficult. On the other hand, the cap-and-trade method set forth in the Special Act is attractive in that it can be integrated with the air pollutant emissions trading system, but it would be difficult to elicit the participation of the industrial sector in the absence of GHG emission reduction requirements. In the current situation, it would be preferable for the government to induce the participation of the industrial sector by devising a wide variety of incentives because taking part in the emissions trading system before reducing GHG emissions offers large incentives through learning by doing. The timing of GHG reduction commitments and emissions trading system implementation may be uncertain but their Implementation will be unavoidable. Thus the government needs to facilitate preparations for emissions trading of GHG in the future and continuously review its operation in integration with the air pollutant emissions trading system to maximize adaptation and teaming by doing effect in the industrial sector.

• 디지털융복합연구
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• 제16권10호
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• pp.11-26
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• 2018

국가 온실가스 감축수단의 확보를 위해 전략적으로 감축기술을 선택하는 것은 매우 중요한 문제이다. 특히, 공공의 기술선택은 다양한 요인들을 고려하는 포괄적인 접근의 필요성이 강조된다. 그러나 지금까지의 논의들은 기술적, 경제적 요인에 중심을 두고 기술선택을 다루고 있으며, 일관된 선택 기준이 적용되지 않고 있다. 본 연구는 국가 온실가스 감축기술을 선택하기 위한 지표를 개발하고자 전문가 22인을 대상으로 델파이 기법을 사용하였다. 이를 통해 타당성이 확보된 국가 온실가스 감축기술 선택 지표를 개발하였으며, 기술, 경제, 환경, 정책, 사회의 관점을 종합적으로 반영하는 것에 대한 적절성을 확인하였다. 상용화기술은 5개 항목의 16개 지표, 신기술은 5개 항목의 18개 지표로 구성되었다. 본 연구를 통해 제시된 기술선택 지표는 국가 온실가스 감축기술 선택을 위한 의사결정 도구로 활용될 수 있을 것이며, 국가 온실가스 감축기술의 적용과 확보에 관한 판단기준 연구에 토대를 제공할 것으로 기대한다.

• 한국대기환경학회지
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• 제33권4호
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• pp.393-402
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• 2017

In this study, greenhouse gas (GHG) reductions from bioenergy (biogas, biomass) have been estimated in Korea, 2015. This study for construction of reduction inventories as direct and indirect reduction sources was derived from IPCC 2006 guidelines for national greenhouse gas inventories, guidelines for local government greenhouse inventories published in 2016, also purchased electricity and steam indirect emission factors obtained from KPX, GIR respectively. As a result, the annual GHG reductions were estimated as $1,860,000tonCO_{2eq}$ accounting for 76.8% of direct reduction (scope 1) and 23.2% of indirect reduction (scope 2). Estimation of individual greenhouse gases (GHGs) from biogas appeared that $CO_2$, $CH_4$, $N_2O$ were $90,000tonCO_2$ (5.5%), $55,000tonCH_4$ (94.5%), $0.3tonN_2O$ (0.004%), respectively. In addition, biomass was $250,000tonCO_2$ (107%), $-300tonCH_4$ (-3.2%), $-33tonN_2O$ (-3.9%). For understanding the values of estimation method levels, field data (this study) appeared to be approximately 85.47% compared to installed capacity. In details, biogas and biomass resulting from field data showed to be 76%, 74% compared to installed capacity, respectively. In the comparison of this study and CDM project with GHG reduction unit per year installed capacity, this study showed as 42% level versus CDM project. Scenario analysis of GHG reductions potential from bioenergy was analyzed that generation efficiency, availability and cumulative distribution were significantly effective on reducing GHG.

• 환경정책연구
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• 제9권1호
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• pp.3-29
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• 2010

기후변화에 따른 광역적 토지사용 정책의 중요성에 대해 미국 캘리포니아 사례를 분석하여 제시하였다. 미국 연방제 하에서 각 주정부의 고유한 환경정책은 온실가스를 줄이는 데 주요한 역할을 하고 있다. 미국 캘리포니아주의 SB 375 입법 사례와 법안에 포함된 인센티브 제도는 실제적으로 토지사용, 교통, 주택 등에 어떠한 정책적 영향을 끼칠 수 있는지 모델을 제시하고 있다. 또한 한국에서의 녹생성장의 논의에 있어서 기후변화에 대처한 환경정책과 광역개발정책의 적절한 통합에 대한 정책적 시사점을 제시하고 있다. 캘리포니아 주정부의 SB 375는 캘리포니아 기후변화정책의 실제적 집행전략으로서: 1) 교통계획 시 지속 가능한 커뮤니티 전략 도입 2) 광역계획과 주택정책의 통합 3) 구체적인 인센티브 도입 4) 온실가스를 줄이는 전략 도입 5) 캘리포니아 대기관리국의 역할 등을 제시하고 있다.

• 한국대기환경학회지
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• 제28권5호
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• pp.556-570
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• 2012

The Low Carbon Path Calculator is an excel-based model to project greenhouse gas emissions from 2009 to 2050, which is based on the 2050 Pathways Calculator developed by the UK Department of Energy and Climate Change (DECC). Scenarios are developed to reduce GHG emissions in Korea at 50% based on 2005 levels by 2050 using a Low Carbon Path Calculator. They were classified in four different cases, which are high renewable, high nuclear, high CCS and mixed option scenarios. The objectives of this study are to compare scenarios in terms of GHG emissions, final energy, primary energy and electricity generation and examine the usefulness of that model in terms of identifying pathways towards a low carbon emission society. This model will enhance the understanding of the pathways toward a low carbon society and the level of the climate change policy for policy makers, stakeholders, and the public. This study can be considered as a reference for developing strategies in reducing GHG emissions in the long term.

• KIEAE Journal
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• 제13권4호
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• pp.11-19
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• 2013

The purpose of this study is to establish the assessment baseline of $CO_2$ emissions from building operations in the view of GHG reduction policy in Korea. The assessment baseline of $CO_2$ emissions shall be used in GHG policy and Carbon Credits in building sectors, but the assessment baseline has not been studied enough or established yet. Also, $CO_2$ emissions from building operations will be variable according to the building occupancy. Therefore the baseline will be different and this study aimed at the establishment of the assessment baseline for residential apartments and office buildings firstly. After reviews of BEER and international standards for building $CO_2$ emissions such as ISO and UNEP-SBCI documents, the analysis of BEER certification data has been pursued for 292 residential apartment complexes and 65 office buildings in South Korea during 2004~2012. As analysis results, the assessment baseline was set to 23.03 $kg{\cdot}CO_2/m^2{\cdot}yr$ or 1.95 $t{\cdot}CO_2/unit{\cdot}yr$ for residential apartment complexes, and 95.91 $kg{\cdot}CO_2/m^2{\cdot}yr$ for office buildings according to the BEER certification basis. Additional assessment baselines were calculated according to year basis, region basis, public and private basis, and GHG policy basis. Finally, the established baseline for residential apartment complexes has been applied for the pilot project in M district, Seoul, and showed 24.97% reduction rate according to the BEER certification basis.

• 한국산학기술학회논문지
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• 제12권7호
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• pp.3302-3309
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• 2011

본 연구는 기후변화 대응을 위한 온실가스 인벤토리 구축 및 공정진단을 통해 온실가스 배출 저감 결과를 나타내었다. 또한 기업체의 기후변화 대응에 대한 방향을 제시하였다. 울산지역은 산업단지 중심으로 석유화학, 자동차, 조선 등 에너지 다소비업체가 많으며, 이산화탄소 배출 저감을 체계적으로 실시 할 경우 국가적 차원에서 이산화탄소 배출량을 상당히 줄일 수 있을 것으로 판단되어 10개 기업체 대상으로 본 연구를 실시하였다. 10개 기업체 중 5개 기업체의 온실가스 배출량 산정 및 인벤토리 구축 결과 온실가스 배출량의 공정에 따른 직접배출이 높은 것을 알 수 있었다. 또한 에너지 및 온실가스 저감을 위해 약 온실가스저감 227,554만원 경제적 효과 및 온실가스 이산화탄소 50,740 ton/yr 절감효과를 발생하였다.