India's commitment to achieving net-zero emissions by 2070 represents a pivotal policy signal, but its ambitious decarbonization pathway is deeply intertwined with complex challenges of climate equity, both on the international stage and within its own borders. Successfully navigating this transition will require a fundamental re-evaluation of historical emissions responsibilities and a concerted effort to address internal developmental disparities, making equity central to its climate strategy [1]. The 2070 net-zero goal, announced at COP26, marks the first time India has committed to an absolute emissions cap, implicitly acknowledging that its rapidly growing emissions must peak sometime between 2040 and 2045 [1]. This timeline positions India's net-zero target as particularly ambitious, given its developmental stage.
Historically, between 1850 and the present, the United States, European Union, and China have accounted for 24%, 17%, and 14% respectively of the 2495 gigatonnes of carbon dioxide emitted globally [1]. In contrast, developed economies like most European countries and the US peaked their emissions in the 1990s and early 2000s, allowing for a nearly 50-year gap before their 2050 net-zero commitments. India, still developing, is projected to peak its emissions post-2040s, leaving a much shorter 30-year window to achieve its 2070 target [1]. The concept of equitable carbon space underscores this challenge. Projections indicate that the US, the EU, and China are set to consume approximately 45% of the 1.5°C carbon budget by 2030, and up to 91% by 2050 [1]. In stark contrast, India's 2070 net-zero pledges imply its cumulative emissions from 1850 to 2100 will be 59% less than China's, 58% less than the US's, and 49% less than the EU's [1].
For a truly equitable distribution of the remaining carbon budget, a common global understanding of equity is urgently needed [1]. Beyond international considerations, India faces significant internal inequities that complicate its net-zero journey. The country exhibits substantial variability in energy consumption and greenhouse gas emissions across its regions and economic strata [1]. While countries with high Human Development Index (HDI) typically consume 70–100 GJ/capita/year in final energy, India's average was around 19 GJ/capita/year in 2019, with a vast internal range of 6–91 GJ across states and union territories [1].
To achieve an HDI of 0.7–0.9 by 2070, India would require a final energy consumption of 40–55 GJ/capita/year [1]. Ensuring energy access for its entire population remains a national priority, making the net-zero transition inseparable from the imperative of a just economic transformation across all sectors [1]. Financing this transition presents another major hurdle rooted in inequity. Global climate finance remains disproportionately skewed, with the majority of investments targeting transport, renewable energy, and energy efficiency technologies [1]. Critical sectors such as industry, buildings, land, water, waste, and agriculture—which collectively employ over 50% of the workforce and contribute significantly to greenhouse gas emissions—receive inadequate funding [1]. Between 2010 and 2022, approximately 63% of early-stage climate technology investments from venture capitalists flowed to the USA and Europe, 25% to China, but only 3% to India, with 9% going to the rest of the world [1].
Scaling up "hard" climate finance massively and increasing the share of investments directed towards developing countries across all sectors are crucial enablers for India's equitable transition [1]. Achieving India's 2070 net-zero target while upholding equity will necessitate a multi-pronged approach. This includes fostering technology co-innovation through collaborative efforts across the value chain, promoting sustainable lifestyles via initiatives like LiFE (Lifestyles for Environment), and continuously strengthening monitoring, reporting, and verification (MRV) capabilities for domestic programs [1]. Ultimately, India's pathway to net-zero highlights the intricate balance required between rapid decarbonization and ensuring a just and equitable future, both for its own citizens and within the broader global climate framework [1].
