我國雖已配合巴黎協議訂定國家預期貢獻與國家近、中、遠期之各期溫室氣體階段管制目標，惟仍缺少個人層面的具體溫室氣體減量方案，因此本研究著重在探討個人的每日飲食、綠色運輸、能源使用等三大類別的可減碳措施，並據以量化個人碳足跡，彙整後提出個人碳足跡行動方案；此外，本研究也假設當全國人口均採行本研究建議之個人碳足跡行動方案時，檢視其整體的減碳量能否達成我國各期溫室氣體管制目標。在個人飲食部分，如採取低碳飲食方針，發現每日可減少1.18公斤的碳排放量；在個人綠色運輸部分，依其不同交通工具換乘公共運輸系統，每日最多可減少2公斤碳排放量；而在個人能源使用部分，若採取節電省水措施，將使每人每日在能源使用部分減少約1.14公斤的碳排放；整體而言，如採行本研究建議之個人碳足跡行動方案，則每人每日碳足跡最多可減少4.32公斤。當假設以現在全國人口採行本研究建議之個人碳足跡行動方案時，則可達成我國2020年、2025年的溫室氣體階段管制目標，但僅達到2030年的溫室氣體階段管制目標的70%，以及2050年溫室氣體階段管制目標的28%。由於本研究僅計算個人飲食、綠色運輸、能源使用相關碳足跡，並未列入個人日常生活中有關消費行為、旅遊行為等其他部分的碳足跡，如可再納入前述行為進行低碳行為，定能減少更多個人碳排放量，惟如何在個人生活品質、永續環境取得一個適當平衡點，仍是需要再進行探討的課題。

While Taiwan has set the Intended Nationally Determined Contribution, as well as the national near-, medium-, and long-term greenhouse gas phase control targets in accord with the Paris Agreement, the specific greenhouse gas reduction program at the individual level is still missing. Hence this study attempted to explore three major categories of carbon reduction measures, including individual daily diet, green transportation, and energy use, followed by the quantification of the individual’s carbon footprint; after a consolidation of all these considerations, a personal carbon footprint action plan was proposed. In addition, an assumption that the whole national population of Taiwan adopts the individual carbon footprint action plan recommended in this study was made to examine whether its overall carbon reduction could achieve greenhouse gas periodic regulatory goal in Taiwan. It was found that at the level of personal diets, such as the low-carb diet approach, reduction of 1.18 kgCO2-eq per day in carbon emission can be achieved; in terms of personal green transportation, the maximum of daily carbon emissions can be reduced by 2 kgCO2-eq, depending on which vehicles are transferred to the public transportation system; for the aspect of personal energy consumption, if energy-saving and water-saving measures are taken, each person's daily use of energy will reduce carbon emissionsby 1.14 kgCO2-eq.In other words, if the individual carbon footprint action plan recommended by this studyis adopted, the daily carbon footprint per person can be reduced by up to 4.32 kgCO2-eq. Assuming that the entire population adopts this individual carbon footprint action plan, Taiwan's greenhouse gas phase control target can be achieved in both 2020 and 2025,70% of the greenhouse gas phase control targets for 2030 will be achieved, and 28% of the 2050 greenhouse gas phase control targets will be met. Given that this study only considered the carbon footprint of the personal diet, green transportation, and energy use, exclusive of other parts of the daily life such as the consumer and tourism behavior, if all these factors are taken into account, it can be expected that individual carbon emissions can be reduced further.However, how to achieve a proper balance between personal living quality and the sustainable environment is still a topic that needs to be explored and measured.

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