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Objectives:In accordance with the concern of global warming problem, many companies in Korea are striving to reduce greenhouse gas emissions in accordance with consumer awareness. Many studies have been reported for various products; however it is difficult to find carbonated soft drinks in Korea. The purpose of this study is to the impact of the greenhouse gas emissions, especially carbonated soft drinks in Korea.Methods:Calculation method of the greenhouse gas emissions followed “Guidelines for Carbon Footprint of Products” used in Korean Carbon Footprint Labeling. It was developed based on international standards such as ISO 14040 series. Life cycle of carbonated soft drinks was considered as a pre-manufacturing stage, manufacturing stage, distribution and disposal stage. Use stage of the product was excluded.Results and Discussion:This study shows that the package types and amounts for pre-manufacturing, manufacturing and disposal steps of carbonated soft drinks (the unit contents: 500 mL/unit, 1.5 L/unit), and also shows the results of greenhouse gas emissions. From the results, the pre-manufacturing stage of PET bottle manufacturing is the first contributor that occupy above 60% of greenhouse gas emissions. For reducing carbon emissions, low carbon manufacturing techniques for PET bottle are important. Sensitivity analysis was performed for PET bottle manufacturing, cap manufacturing and waste plastic disposal including site data and assumptions made. The sensitivity of each item was less than 7%.Conclusions:In conclusion, this study shows that the pre-manufacturing step of PET bottle and cap production have very significant impact on the greenhouse gas emissions. Therefore lightweight packages and usage of recycled plastics would be main techniques for reducing greenhouse gas emissions of carbonated soft drinks. From this study, the increment of product’s carbon footprint certification would be used as an effective policy instrument for achieving reduction goals of Korea Government. And also it could be used to spread the culture of reducing greenhouse gas emissions.

Analysis of Greenhouse Gas Emissions for Carbonated Soft Drinks Using LCA Methodology