Journal
ENVIRONMENTAL RESEARCH LETTERS
Volume 17, Issue 6, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1748-9326/ac6f13
Keywords
India; climate mitigation; energy; emissions; scenarios; modeling; review
Funding
- United States Agency for International Development [DE-AC36-08GO28308]
- Alliance for Sustainable Energy, LLC, Managing and Operating Contractor for the National Renewable Energy Laboratory for the U.S. Department of Energy
- DOE by Battelle Memorial Institute [DE-AC0576RL01830]
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India faces the dual challenge of economic development and responding to climate change. High-quality data and research are needed for Indian policymakers and stakeholders to assess low-emissions, sustainable development strategies. This paper examines the recent peer-reviewed literature on India's 2030 and 2050 pathways, and finds the need for more ambitious mitigation pathways to achieve net-zero emissions by or before 2070.
India faces a dual challenge of economic development and responding to climate change. Although India's per capita emissions are well below global average, the country is one of the world's largest greenhouse gas emitters. Indian policymakers and stakeholders require high-quality data and research to assess low-emissions, sustainable development strategies. Peer-reviewed literature is a key source of this information and also a key venue for conversation amongst research leaders. This paper examines the recent peer-reviewed literature on India's 2030 and 2050 pathways. We conducted a systematic literature review to identify key quantitative national modeling studies. From the 34 studies identified, we synthesized scenario data to draw common conclusions and identify critical research gaps. The main focus was on examining the coverage and the state of information available on low-carbon pathways. Overall, we find a few scenarios that are potentially consistent with a 2070 net-zero goal, but more limited assessment of pathways to reach net-zero emissions before this date. Mitigation pathways with greater ambition are required across all energy sectors to ensure a smooth transition to net-zero emissions by or before 2070. The scenarios confirm that reducing emissions to below 2 GtCO(2) yr(-1) by mid-century would necessitate significant transformations of the Indian energy sector, such as, a decrease in unabated coal power capacity, transportation modal shift, and industrial process switching. The assessment also finds substantial differences in final energy estimates reported across studies, particularly in transportation. The lack of consistency in, and transparency about underlying drivers, assumptions, and even outputs across studies points to the critical need for the sorts of coordinated, multi-model studies that have proven exceptionally valuable for decision makers in other major emitting countries.
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