相較於過去大家了解的溫室氣體排放量,碳足跡(Carbon Footprint)更加強調人類活動間接所產生的二氧化碳排放量,這意味著我們不再只是關注活動當中直接產生的二氧化碳排放量而已,並且衡量時不應受限於地理疆界。本研究是以全球的觀點探討國家的發展程度、能源進口與國際貿易是否與碳足跡有關聯性。實證結果發現處在未開發或開發中階段國家的碳足跡是呈現惡化的情況,已開發國家則有較好的能力可以分配資源且同時產生較少的碳足跡。能源進口方面,國家若是能有效利用進口能源的話,能源進口的增多並不會帶來更多的碳足跡。最後,國家的國際貿易型態若為順差時會產生較多的碳足跡。根據本研究之實證結果提出以下三點建議,希望未來可作為國家政府相關當局在擬訂政策時之參考。1. 在能源進口的同時必須審慎的考量國家是否可以盡量提高能源的使用效率不造成無謂的能源浪費。2. 在國際貿易當中,國家應當仔細思考在經濟成長與對環境造成的衝擊兩方面取得平衡,而不應一味地只考量國家的經濟發展而已。3. 台灣的經濟與產業未來能夠應朝向低耗能、低污染與高附加價值的方向永續發展。 Carbon footprint is compared to the greenhouse gas emisions which we were familiar with in the past. Carbon footprint emphasizes on human activities which are indirectly genetated carbon dioxide emissions. That is, we not only pay attention to direct carbon dioxide emissions but also be not limited of geographical boundaries in the calculation. In this study, we discuss whether level of national development、energy import and international trade are associated with the carbon footprint based on the perspective of the global. The result is that carbon footprint is showing deterioration at the stage of development or developing countries, and the developed countries are better able to allocate resources and produce less carbon footprint at the same time. In the energy import, the increase in energy imports will not lead to more carbon footprint if countries take advantage of energy import efficiently. Finally, it will be produced more carbon footprint if country’s international trade is in the suplus. Therefore, I raise some appropriate recommendations by our practical result. I hope in the future that the relevant government authorities can refer to those recommendations to make policies. 1. Nations should carefully consider maximizing the the efficiency of energy use and not cause unnecessary waste of energy as possible while energy imports. 2. Nations should think carefully to balance between the economic growth and the impact on the environment strike, rather than blindly consider the country’s economic development. 3. Taiwan's economic and industrial will be developed toward low-energy, low- water, low-pollution and high added value.