Jha Chandan Kumar, Ghosh Ranjan Kumar, Saxena Satyam, Singh Vartika, Mosnier Aline, Guzman Katya Perez, Stevanović Miodrag, Popp Alexander, Lotze-Campen Hermann
Indian Institute of Management Ahmedabad (IIMA), Ahmedabad, India.
Department of Agricultural Economics, Humboldt-Universität zu Berlin, Berlin, Germany.
Sustain Sci. 2023;18(1):457-468. doi: 10.1007/s11625-022-01193-0. Epub 2022 Sep 1.
India has committed to reducing the emissions intensity of GDP by 33-35% from the 2005 level by 2030 in alignment with objectives of the Paris Agreement. This will require a significant reduction in greenhouse gas (GHG) emissions from the food and land-use sector. In this paper, we construct three potential pathways for India to achieve its emissions target by 2050 involving moderate ambitions of mitigation action (BAU), moderate ambitions combined with achieving healthy diets (BAU + NIN), and high levels of mitigation action inclusive of healthy diets (SUSTAINABLE). Using an integrated accounting tool, the FABLE Calculator, that harmonizes various socioeconomic and biophysical data, we project these pathways under the conditions of cross-country balanced trade flows. Results from the projections show that the demand for cereals will increase by 2050, leading to increased GHG emissions under BAU. Under the SUSTAINABLE pathways, GHG emissions will decrease over the same period due to reduced demand for cereals, whereas significant crop productivity and harvest intensity gains would lead to increased crop production. The exercise reveals the indispensability of healthy diets, improved crop, and livestock productivity, and net-zero deforestation in achieving India's mid-century emission targets from the agriculture sector.
The online version contains supplementary material available at 10.1007/s11625-022-01193-0.
印度已承诺到2030年将GDP的排放强度在2005年水平的基础上降低33%-35%,以符合《巴黎协定》的目标。这将需要大幅减少食品和土地利用部门的温室气体(GHG)排放。在本文中,我们构建了印度到2050年实现其排放目标的三条潜在途径,包括适度的缓解行动(BAU)、适度行动与实现健康饮食相结合(BAU + NIN)以及包括健康饮食在内的高水平缓解行动(可持续)。使用一个整合了各种社会经济和生物物理数据的综合核算工具——FABLE计算器,我们在跨国平衡贸易流的条件下预测这些途径。预测结果表明,到2050年谷物需求将增加,导致BAU情景下温室气体排放增加。在可持续途径下,由于谷物需求减少,同期温室气体排放将减少,而显著的作物生产力和收获强度提高将导致作物产量增加。该研究揭示了健康饮食、提高作物和牲畜生产力以及实现森林砍伐净零在实现印度农业部门本世纪中叶排放目标方面的不可或缺性。
在线版本包含可在10.1007/s11625-022-01193-0获取的补充材料。