食物長途運輸之碳足跡分析：以進口蘋果為例

An Analysis of the Carbon Footprint from Long Distance Food Transportation: Case of the Imported Apple in Taiwan

本文以ISO 14040的國際標準區分蘋果的生命週期，並採用PAS 20的做法，將所有的排放指標換算為二氧化碳當量，比較進口蘋果與本土蘋果的碳排放差異。研究結果顯示，2014年全年度由於海運進口蘋果產生的額外碳排放為43,034公噸二氧化碳當量。若想藉由資助風力發電來進行碳抵銷，需要花費新台幣48.456，284元才能達成碳中和。若想藉由植樹減碳活動來抵銷，則需要造人工針葉林2,962公頃；或是人工闊葉林2.379公頃。因此為了減緩溫室效應，政府應課徵高碳排放稅讓消費者有誘因選擇低碳、當地及當季的台灣食材。 This research paper will focus on food carbon foot print with apple as an example. Taiwan has a variety of different fruits but apples are still mainly imported from overseas to satisfy local demand. The impact of imported versus local produced apples towards the environment will be therefore analyzed based on ISO 14040 and PAS 2050. One kilogram apples from Chile are causing 450 grams of CO2e. In 2014, 130,000 tones were imported and had produced 43,034 metric tons of CO2e. It cost approximately NTD $ 48,456,284 to carbon offset through wind power. Reducing emissions by planting trees to offset greenhouse gas emissions, 2,962 hectares of conifer plantation or 2,379 hectares of broadleaf forest are needed. Additionally no technology is so far available to reduce carbon emissions effectively. Instead, Government uses carbon tax to induce consumer consuming low-carbon and local produced food should be one of the solutions.