
你知道嗎?喝咖啡不只是享受香氣和味道,它的生產和消費過程也會影響環境!研究發現,每公斤咖啡會產生 0.27 到 15.33 公斤的二氧化碳,具體數字取決於咖啡的種植方式和整個生產過程[1][2]。
生產過程中的環境影響
咖啡種植是碳排放的大頭,特別是使用化肥和森林砍伐會帶來很大影響[3]。像氮肥這類農藥會釋放一氧化二氮(N2O),這是一種威力強大的溫室氣體。不過,採用多樣化的種植系統和減少農藥使用,可以降低多達 77% 的碳排放[2][4]。
咖啡加工和消費的隱藏排放
咖啡的加工和消費環節也對碳排放有貢獻。例如,在咖啡裡加入牛奶,或使用一次性包裝,都會增加碳足跡[3][5]。如果能用可再生能源來烘焙咖啡,這些排放可以大幅降低[6]。
怎麼減少碳足跡?
總結
我們喝的每一杯咖啡,都能變得更環保!透過選擇永續的產品和減少浪費,不僅能享受咖啡的美好,還能一起保護地球。
[1] Usva, K., Sinkko, T., Silvenius, F., Riipi, I., & Heusala, H. (2020). Carbon and water footprint of coffee consumed in Finland—life cycle assessment. The International Journal of Life Cycle Assessment, 25(10), 1976–1990. https://doi.org/10.1007/s11367-020-01799-5
[2]Nab, C., & Maslin, M. (2020). Life cycle assessment synthesis of the carbon footprint of Arabica coffee: Case study of Brazil and Vietnam conventional and sustainable coffee production and export to the United Kingdom. Geo Geography and Environment, 7(2). https://doi.org/10.1002/geo2.96
[3]Zhao, S., Chan, K., Sheng, N., Song, Q., & Li, J. (2024). Reducing carbon footprint of typical coffee consumption from the whole lifecycle viewpoint. Environmental Impact Assessment Review, 106, 107476. https://doi.org/10.1016/j.eiar.2024.107476
[4]Van Rikxoort, H., Schroth, G., Läderach, P., & Rodríguez-Sánchez, B. (2014). Carbon footprints and carbon stocks reveal climate-friendly coffee production. Agronomy for Sustainable Development, 34(4), 887–897. https://doi.org/10.1007/s13593-014-0223-8
[5]Phunphiphat, R., & Haputta, P. (2023). Carbon footprint of coffee drinks. Journal of Applied Science and Emerging Technology, 22(1), 1–8. https://doi.org/10.14416/jaset.kmutnb.2023.01.005
[6] De Los Ángeles Franco, M., & Bartl, K. (2018). Carbon Footprint of the Coffee Roasting Process Based on Two Technologies with Different Sources of Energy in Peru. European Journal of Sustainable Development, 7(3). https://doi.org/10.14207/ejsd.2018.v7n3p90