scholarly journals Correction to: Evaluating the impact of the KETS on GHG reduction in the first phase

Author(s):  
Sung-Hyun Jun ◽  
Jee Young Kim ◽  
Hyungna Oh
Keyword(s):  
2020 ◽  
Author(s):  
Elisabeth DeMarco ◽  
Robert Routliffe ◽  
Heather Landymore

On 17 December 2002, Canada ratified the Kyoto Protocol to the United Nations Framework Convention on Climate Change (Kyoto Protocol), taking on binding targets to reduce Canadian emissions of greenhouse gases (GHGs). Canada's ratification decision and the proposed domestic emissions trading system forming part of Canada's Kyoto implementation plan continue to be the source of considerable disagreement and conflict between the provinces and thefederal government regarding: the practical challenges associated with multiple Canadian jurisdictions implementing emissions trading systems: the current status and legal issues associated with covenants between industry and government(s) to enforce GHG reduction targets; the legal jurisdiction over domestic emissions trading system(s); and the impact on interprovincial and international trade. Each ofthese issues is examined in the unique Canadian legal context. The authors conclude that many ofthe most significant challenges may be mitigated through harmonization and coordination byfederal and provincial governments in a manner that allows for local concerns to be addressed without fragmenting the Canadian emissions markets.


2015 ◽  
Vol 4 (1) ◽  
pp. 11-19
Author(s):  
Mevlan Qafleshi ◽  
Driton R. Kryeziu ◽  
Lulezime Aliko

The energy generation in Albania is completely from the hydropower plants. In terms of GHG emissions this is 100% green. In Kosovo 97% of energy is generated from lignite fired power plants. Apart the energy generation, the combustion process emits around 8000 ktCO2/yr and 1.5 Mt of ash in the form of fly and bottom ash. In both countries there is no MWh power generated from wind energy, i.e. this energy source is not utilized. Here, a proposed project for five locations in Albania and Kosovo has been analyzed in detail with the aim of installing a 1kW wind turbine off-grid. The method of study is based on the application of RETScreen International program software. This proposed model is intended to replace a base case- a diesel generator with installed capacity 7kW.  The locations are selected three in Albania: Vlora, Korça and Elbasan, and two in Kosovo: Prishtina and Prizren. All are in different altitudes. By the calculation of RETScreen program, it has been analyzed the feasibility of the proposed projects by installing a wind turbine at hub’s height 20m. The climate data for each location were retrieved by the RETScreen program from NASA. Generally, the calculation of financial parameters for the investments came out to be positive, the impact of GHG reduction very significant. A 5500 USD investment for the implementation of proposed case showed an equity payback time of 2-3 yrs and GHG reduction of 2.2 tCO2/yr. The electricity delivery to load only from this 1 KW wind turbine resulted to be between 1.6-17 MWh/yr.


2018 ◽  
Author(s):  
Brett McPherson ◽  
Mihray Sharip ◽  
Terry Grimmond

Background. Sustainable purchasing can reduce greenhouse gas (GHG) emissions at healthcare facilities (HCF). A previous study found that converting from disposable to reusable sharps containers (DSC, RSC) reduced sharps waste stream GHG by 84% but, in finding transport distances impacted significantly on GHG outcomes, recommended further studies where transport distances are large. This case-study examines the impact on GHG of nation-wide transport distances when a large US health system converted from DSC to RSC. Methods. The study examined the alternate use of DSC and RSC at a large US university hospital where: the source of polymer was distant from the RSC manufacturing plant; both manufacturing plants were over 3,000 km from the HCF; and the RSC disposal plant was considerably further from the HCF than was the DSC disposal plant. Using a “cradle to grave” life cycle assessment (LCA) tool we calculated annual GHG emissions (CO2, CH4, N2O) in metric tonnes of carbon dioxide equivalents (MTCO2eq) to assess the impact on global warming potential (GWP) of each container system. Primary energy input data was used wherever possible and region-specific impact conversions used to calculate GWP of each activity over a 12-month period. Unit process GHG were collated into Manufacture, Transport, Washing, and Treatment & disposal. Emission totals were workload-normalized and analysed using CHI2 test with P ≤0.05 and rate ratios at 95% CL. Results. The hospital reduced its annual GWP by 168 MTCO2eq (-64.5%; p < 0.001), and annually eliminated 50.2 tonnes of plastic DSC and 8.1 tonnes of cardboard from the sharps waste stream. Of the plastic eliminated, 31.8 tonnes were diverted from landfill and 18.4 from incineration. Discussion. Unlike GHG reduction strategies dependent on changes in staff behaviour (waste segregation, recycling, turning off lights, car-pooling, etc), purchasing strategies can enable immediate, sustainable and institution-wide GHG reductions to be achieved. Medical waste containers contribute significantly to the supply chain carbon footprint and, although non-sharp medical waste volumes have decreased significantly with avid segregation, sharps wastes have increased, and can account for 50% of total medical waste volume. Thus converting from DSC to RSC can assist reduce the GWP footprint of the medical waste stream. This study confirmed that large transport distances between polymer manufacturer and container manufacturer; container manufacturer and user; and/or between user and processing facilities, can significantly impact the GWP of sharps containment systems. However, even with large transport distances, we found that a large university health system significantly reduced the GWP of their sharps waste stream by converting from DSC to RSC.


2018 ◽  
Author(s):  
Brett McPherson ◽  
Mihray Sharip ◽  
Terry Grimmond

Background. Sustainable purchasing can reduce greenhouse gas (GHG) emissions at healthcare facilities (HCF). A previous study found that converting from disposable to reusable sharps containers (DSC, RSC) reduced sharps waste stream GHG by 84% but, in finding transport distances impacted significantly on GHG outcomes, recommended further studies where transport distances are large. This case-study examines the impact on GHG of nation-wide transport distances when a large US health system converted from DSC to RSC. Methods. The study examined the alternate use of DSC and RSC at a large US university hospital where: the source of polymer was distant from the RSC manufacturing plant; both manufacturing plants were over 3,000 km from the HCF; and the RSC disposal plant was considerably further from the HCF than was the DSC disposal plant. Using a “cradle to grave” life cycle assessment (LCA) tool we calculated annual GHG emissions (CO2, CH4, N2O) in metric tonnes of carbon dioxide equivalents (MTCO2eq) to assess the impact on global warming potential (GWP) of each container system. Primary energy input data was used wherever possible and region-specific impact conversions used to calculate GWP of each activity over a 12-month period. Unit process GHG were collated into Manufacture, Transport, Washing, and Treatment & disposal. Emission totals were workload-normalized and analysed using CHI2 test with P ≤0.05 and rate ratios at 95% CL. Results. The hospital reduced its annual GWP by 168 MTCO2eq (-64.5%; p < 0.001), and annually eliminated 50.2 tonnes of plastic DSC and 8.1 tonnes of cardboard from the sharps waste stream. Of the plastic eliminated, 31.8 tonnes were diverted from landfill and 18.4 from incineration. Discussion. Unlike GHG reduction strategies dependent on changes in staff behaviour (waste segregation, recycling, turning off lights, car-pooling, etc), purchasing strategies can enable immediate, sustainable and institution-wide GHG reductions to be achieved. Medical waste containers contribute significantly to the supply chain carbon footprint and, although non-sharp medical waste volumes have decreased significantly with avid segregation, sharps wastes have increased, and can account for 50% of total medical waste volume. Thus converting from DSC to RSC can assist reduce the GWP footprint of the medical waste stream. This study confirmed that large transport distances between polymer manufacturer and container manufacturer; container manufacturer and user; and/or between user and processing facilities, can significantly impact the GWP of sharps containment systems. However, even with large transport distances, we found that a large university health system significantly reduced the GWP of their sharps waste stream by converting from DSC to RSC.


2015 ◽  
Vol 49 (6) ◽  
pp. 311-319
Author(s):  
Seukkyu Kang ◽  
◽  
Sang-ho Lee

2014 ◽  
Vol 14 (4) ◽  
pp. 1585-1614 ◽  
Author(s):  
Won-Sik Hwang ◽  
Inha Oh ◽  
Jeong-Dong Lee

Abstract The Korean government has recently established national and sectoral mid-term greenhouse gas (GHG) reduction targets. Specifically, the country must reduce its total GHG emissions by 30% compared to business-as-usual (BAU) by 2020. This study has two main purposes. First, the study aims to measure the economic impacts of pursuing and achieving the government’s GHG reduction targets. Second, it aims to estimate each major policy’s potential GHG emission reductions in the various sectors. We use the computable general equilibrium model and develop three scenarios to examine the economic and environmental impacts of Korea’s green growth policies – a baseline scenario wherein the national economy proceeds without green growth policies; scenario A, wherein the government imposes national and sectoral emission reduction targets without adopting green technologies; and scenario B, wherein the government adopts policy and technology as renewable portfolio standard and carbon capture and storage. The simulation results from scenario A indicate that the government’s mid-term targets could pose a significant challenge to Korea’s national economy. In addition, the results from scenario B indicate that low-carbon green policy and technology will play an important role in reducing GHG emissions.


Author(s):  
Boxiao Chen ◽  
Xiuli Chao ◽  
Yan Fu ◽  
Margaret Strumolo ◽  
Michael A. Tamor

Both automakers and electricity generators are facing increasingly more stringent greenhouse gas (GHG) emission targets. With the introduction of plug-in hybrid and electric vehicles, the transportation and electricity generation sectors become connected. This provides an opportunity for both sectors to work jointly to achieve cost efficient reduction of CO2 emissions. Due to the low cost and low carbon content of natural gas (NG), NG enabled vehicles are drawing increasing attention. With GHG targets rapidly decreasing, how to judiciously choose among plug-in hybrid vehicles, electric vehicles, NG-enabled vehicles, and gasoline vehicles to save societal cost is worth serious consideration. On the other hand, gasoline and NG prices play an important role in this decision-making process. In order to estimate the impact of gasoline and NG prices and quantify the benefit of the collaboration between automakers and electricity generators, an optimization model is developed to evaluate the total societal cost and CO2 emissions for both sectors. Various scenario analyses are conducted to understand the cost and capacity planning differences when gasoline and NG prices vary while the two sectors can work jointly or independently to meet the CO2 emission constraints. These results help us understand the impact of gasoline and NG prices in achieving GHG reduction targets for the two major sectors of CO2 emissions in the United States.


Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3834
Author(s):  
Stephanie Taboada ◽  
Lori Clark ◽  
Jake Lindberg ◽  
David J Tonjes ◽  
Devinder Mahajan

Public attention to climate change challenges our locked-in fossil fuel-dependent energy sector. Natural gas is replacing other fossil fuels in our energy mix. One way to reduce the greenhouse gas (GHG) impact of fossil natural gas is to replace it with renewable natural gas (RNG). The benefits of utilizing RNG are that it has no climate change impact when combusted and utilized in the same applications as fossil natural gas. RNG can be injected into the gas grid, used as a transportation fuel, or used for heating and electricity generation. Less common applications include utilizing RNG to produce chemicals, such as methanol, dimethyl ether, and ammonia. The GHG impact should be quantified before committing to RNG. This study quantifies the potential production of biogas (i.e., the precursor to RNG) and RNG from agricultural and waste sources in New York State (NYS). It is unique because it is the first study to provide this analysis. The results showed that only about 10% of the state’s resources are used to generate biogas, of which a small fraction is processed to RNG on the only two operational RNG facilities in the state. The impact of incorporating a second renewable substitute for fossil natural gas, “green” hydrogen, is also analyzed. It revealed that injecting RNG and “green” hydrogen gas into the pipeline system can reduce up to 20% of the state’s carbon emissions resulting from fossil natural gas usage, which is a significant GHG reduction. Policy analysis for NYS shows that several state and federal policies support RNG production. However, the value of RNG can be increased 10-fold by applying a similar incentive policy to California’s Low Carbon Fuel Standard (LCFS).


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