Insights of carbon footprint of tea through life cycle approach
DOI:
https://doi.org/10.14719/pst.5374Keywords:
carbon footprint, greenhouse gas, life cycle assessment, teaAbstract
Stabilizing GHG emissions in the agri-food sector is crucial for climate change mitigation. Tea is one of the most consumed drinks worldwide and such high levels of consumption necessitate for the carbon footprint (CF) assessment of its entire life cycle encompassing all six stages such as cultivation, processing, packaging, transportation, consumption and disposal to understand the environmental impact of tea industry at large. In this context, this study is a maiden attempt to quantify and compare CF for the entire life cycle of all three types of tea such as black, green and white tea in a single research paper by employing the life cycle assessment (LCA) method in significant tea growing areas of Tamil Nadu, India. The findings revealed that the consumption stage contributed the highest CO2 emissions, accounting for 45%-56% to overall CF. Black tea consumption contributed 45% (5.8 kg CO2-eq/kg of made tea) of the total CF, while green tea and white tea had higher CF (8.3 kg CO?-eq/kg of made tea), contributing 56% to the total CF. The processing stage was the second largest source, contributing 12-19% to overall CF, followed by packaging (15-17%) and cultivation (10-11%) stages. Overall, the total CF (cradle to grave) for black tea and white tea had a similar value of 12.9 kg CO2-eq/kg of made tea, whereas green tea registered a higher value of 14.79 kg CO2-eq/kg of made tea. Furthermore, this assessment identified hotspots of GHG emissions. It enabled the recommendation of CF reduction measures to promote carbon neutrality in tea sector while being a part of global climate change mitigation efforts.
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References
Tea Board of India. [Accessed on 20 September 2024]. Avaialble from: https://www.teaboard.gov.in/
Liang L, Ridoutt BG, Wang L, Xie B, Li M, Li Z. Chinas' tea industry: Net greenhouse gas emissions and mitigation potential. Agriculture. 2021;11(4):363. https://doi.org/10.3390/agriculture11040363
Wang J, Smith P, Hergoualc'h K, Zou J. Direct N2O emissions from global tea plantations and mitigation potential by climate-smart practices. Resour Conserv Recycl. 2022;185:106501. https://doi.org/10.1016/j.resconrec.2022.106501
Xu Q, Hu K, Wang X, Wang D, Knudsen MT. Carbon footprint and primary energy demand of organic tea in China using a life cycle assessment approach. J Clean Prod. 2019;233:782–92. https://doi.org/10.1016/j.jclepro.2019.06.136
He M, Li Y, Zong S, Li K, Han X, Zhao M. Life Cycle assessment of carbon footprint of green tea produced by smallholder farmers in Shaanxi province of China. Agronomy. 2023;13(2):364. https://doi.org/10.3390/agronomy13020364
Kashyap, D., & Agarwal, T. 2021. Carbon footprint and water footprint of rice and wheat production in Punjab, India. Agricultural Systems. 186:102959. https://doi.org/10.1016/j.agsy.2020.102959
ISO 14067International Organization for Standardization: Geneva, Switzerland [internet]. Geneva:ISO; [2018]. Available from: https://www.iso.org/standard/71206.html
BSI, 2011. PAS 2050.Specification for the assessment of the life cycle greenhouse gas emissions of goods and services [internet]. London: BSI. [2011]. Available from: https://biolatina.com/wp-content/uploads/2018/08/PAS2050.pdf
Kool A, Marinussen M, Blonk H. LCI data for the calculation tool Feedprint for greenhouse gas emissions of feed production and utilization. GHG Emissions of N, P and K fertilizer production. 2012;20
IPCC.. IPCC Guidelines for National Greenhouse Gas Inventories Agriculture, Forestry and Other Land Use [internet]. IPCC: Geneva, Switzerland [5 September 2024). Available from: https://www.ipcc-nggip.iges.or.jp/public/2006gl/
Nemecek T, Kägi T, Blaser S. Life cycle inventories of agricultural production systems. Final Report Ecoinvent 2007;2(15):1–360
Bhattacharya SC, Albina DO, Salam PA. Emission factors of wood and charcoal-fired cookstoves. Biomass Bioenergy. 2002;23(6):453–69. https://doi.org/10.1016/S0961-9534(02)00072-7Get rights and content
Central Electrical Authority (CEA). Ministry of Power- Central Electrical Authority (CEA)[intenet]. [accessed on 5 September 2024]. Available from: https://cea.nic.in/?lang=en.
United States Environmental Protection Agency (USEPA). 2023. Emission factors. Available from: https://www.epa.gov/
Ma X, Li C, Li B. Carbon emissions of Chinas' cement packaging: life cycle assessment. Sustainability. 2019;11(20):5554. https://doi.org/10.3390/su11205554
Doublet G, Jungbluth N. Life cycle assessment of drinking Darjeeling tea. Conventional and organic Darjeeling tea. ESU-services Ltd., Uster. 2010.
Cichorowski G, Joa B, Hottenroth H, Schmidt M. Scenario analysis of life cycle greenhouse gas emissions of Darjeeling tea. Int J Life Cycle Assess. 2015;20:426–39. https://doi.org/10.1007/s11367-014-0840-0.
Yu Z, Jiao W, Min Q. Carbon footprints of tea production in smallholder plantations: A case study of Fenghuang Dancong tea in China. Ecol Indic. 2024;158:111305. https://doi.org/10.1016/j.ecolind.2023.111305
Zhang C, Ye X, Wu X, Yang X. Carbon footprint of black tea products under different technological routes and its influencing factors. Front Earth Sci (Lausanne). 2023;10:1046052. https://doi.org/10.1016/j.jclepro.2023.139574
Kouchaki-Penchah H, Nabavi-Pelesaraei A, O'Dwyer J, Sharifi M. Environmental management of tea production using joint of life cycle assessment and data envelopment analysis approaches. Environ Prog Sustain Energy. 2017;36(4):1116–22. https://doi.org/10.1002/ep.12550
Soheili-Fard F, Kouchaki-Penchah H, Raini MGN, Chen G. Cradle to grave environmental-economic analysis of tea life cycle in Iran. J Clean Prod. 2018;196:953–60. https://doi.org/10.1016/j.jclepro.2018.06.083
Khanali M, Hosseinzadeh-Bandbafha H, Salehpour T. Environmental impact of tea production/consumption chain. In: Charis MG, editor. Environmental Impact of Agro-Food Industry and Food Consumption. Elsevier; 2021. p. 217–37. https://doi.org/10.1016/B978-0-12-821363-6.00003-5
Azapagic A, Bore J, Cheserek B, Kamunya S, Elbehri A. The global warming potential of production and consumption of Kenyan tea. J Clean Prod. 2016;112:4031–40. https://doi.org/10.1016/j.jclepro.2015.07.029
Xu Q, Yang Y, Hu K, Chen J, Djomo SN, Yang X, Knudsen MT. Economic, environmentaland emergy analysis of Chinas' green tea production. Sustainable Production and Consumption. 2021;28:269–80. https://doi.org/10.1016/j.spc.2021.04.019
Hu AH, Chen CH, Huang LH, Chung MH, Lan YC, Chen Z. Environmental impact and carbon footprint assessment of Taiwanese agricultural products: A case study on Taiwanese Dongshan Tea. Energies. 2019;12(1):138. https://doi.org/10.3390/en12010138
He MB, Zong SX, Li YC, Ma MM, Ma X, Li K, et al. Carbon footprint and carbon neutrality pathway of green tea in China. Advances in Climate Change Research. 2022;13(3):443–53. https://doi.org/10.1016/j.accre.2022.04.001
Chiu YW. Environmental implications of Taiwanese oolong tea and the opportunities of impact reduction. Sustainability. 2019;11(21):6042.
Wang Y, Yao Z, Pan Z, Wang R, Yan G, Liu C, et al. Tea-planted soils as global hotspots for N2O emissions from croplands. Environmental Research Letters. 2020;15(10):104018. https://doi.org/10.1088/1748-9326/aba5b2
Tokuda S ichi, Hayatsu M. Nitrous oxide flux from a tea field amended with a large amount of nitrogen fertilizer and soil environmental factors controlling the flux. Soil Sci Plant Nutr. 2004;50(3):365–74. https://doi.org/10.1080/00380768.2004.10408490
Wang X, Kato T, Tokuda S. Environmental problems caused by heavy application of nitrogen fertilizers in Japanese tea fields. In: Conacher AJ, editor. Land Degradation. The GeoJournal Library, vol 58. Springer:Dordrecht; 2001. p.141–50 https://doi.org/10.1007/978-94-017-2033-5_9
Han X, Yu HY, Zheng NG, Ge CR, Yao HY. Nitrous oxide emissions from tea plantations: A review. Ying Yong Sheng Tai Xue Bao. 2023;34(3):805–14. https://doi.org/10.13287/j.1001-9332.202303.011
Yao Z, Wei Y, Liu C, Zheng X, Xie B. Organically fertilized tea plantation stimulates N2O emissions and lowers NO fluxes in subtropical China. Biogeosciences. 2015;12(20):5915–28. https://doi.org/10.5194/bg-12-5915-2015
Kamau DM, Owuor PO, Wanyoko JK. Split application of nitrogen fertilizer rates in two tea cultivars grown in the Eastern and Western highlands of Kenya: I. Confirmatory results on yield effects. Tea.2000;21(2): 76–85
Owuor OP, Kamau DM, Jondiko EO. The influence of geographical area of production and nitrogenous fertilizer on yields and quality parameters of clonal tea. Journal of Food, Agriculture and Environment. 2010;8(2):682–90.
Yu Y, Zhang Y, Yang B, Qian C, Wang Y, Chen T, et al. Nitrogen Utilization and Loss of the Tea Plantation System on Sloped Farmland: A Short-Term Response to Substitution with Organic Fertilizer. Agronomy. 2024;14(2):392. https://doi.org/10.3390/agronomy14020392
Roohi, Srivastava P, Bano K, Zaheer MR, Kuddus M. Biodegradable smart biopolymers for food packaging: Sustainable approach toward green environment.In: Ahmed S, editor. Bio-based Materials for Food Packaging. Springer: Singapore; 2018. p. 197-216. https://doi.org/10.1007/978-981-13-1909-9_9
Mehlig D, Staffell I, Stettler M, ApSimon H. Accelerating electric vehicle uptake favours greenhouse gas over air pollutant emissions. Transportation Research Part D: Transport and Environment. 2023;124:103954. https://doi.org/10.1016/j.trd.2023.103954
Harper N. Sustainable Heating Solutions: Lowering carbon emissions created by LPG boiler at the University of Otago. Puhau ana te ra: Tailwinds. 2023;1(1). https://doi.org/10.11157/patr.v1i1.14
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Copyright (c) 2024 Vadivel Premalatha, Rangasamy Sunitha, Subramanian Krishnaraj Rajkishore, Ramar Manimekalai, Seenapuram Palaniswami Thamaraiselvi, Sathya Ponnuraj Moorthy, Ravi Raveena, Desikan Ramesh
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