India's carbon market is entering a formative phase. Through the Indian Carbon Market and the Green Credit Programme, the Government of India is creating market-based incentives to reduce emissions while rewarding sustainable practices. Agriculture is expected to become an important part of this transition because of its potential to sequester carbon, improve soil health and strengthen climate resilience.
Voluntary carbon credit (VCC) programmes are emerging as one of the principal mechanisms for engaging farmers in this transition. India already accounts for around 4.1 percent of the global voluntary carbon market, yet participation among smallholder farmers – who constitute more than 80 percent of the country's farming population – remains limited.
This participation gap raises an important policy question: are current programme designs aligned with the realities of India's smallholders? If farmers differ widely in their financial resources, technical capabilities and operational constraints, uniform programme designs may themselves be limiting participation. More fundamentally, scaling voluntary carbon markets is not simply a question of offering higher carbon prices; it is a question of designing programmes that lower the barriers to participation.
Programme Design Determines Participation
Voluntary carbon credit programmes seek to align climate mitigation with farm incomes by rewarding practices such as zero tillage, residue management, precision nutrient management and crop diversification that reduce emissions or increase soil carbon sequestration. Yet participation requires farmers to assess far more than potential carbon revenues. They must also consider upfront investment costs, monitoring and verification requirements, compliance obligations and implementation risks. The attractiveness of a programme therefore depends as much on its implementation architecture as on the value of the carbon credits themselves.
What Farmers Prioritise
A choice experiment involving 100 smallholder farmers in Bihar examined which programme attributes most strongly influence participation decisions.
Upfront financial support emerged as the strongest farmer preference. Climate-friendly practices often require farmers to invest in inputs, labour, machinery and learning before any carbon payments are received. Delaying incentives until after verification transfers much of this implementation risk onto farmers, making participation substantially less attractive for liquidity-constrained households.
Training and technical support also emerged as important determinants of participation. Rather than simply providing information, they reduce transaction costs by helping farmers understand programme requirements, monitoring procedures and verification processes, thereby lowering uncertainty associated with participation.
The survey also suggests that financial incentives cannot compensate for weak implementation ecosystems. Access to machinery, service providers and local institutions remains essential for reducing implementation costs and enabling farmers to adopt new practices. Attractive carbon prices alone are therefore unlikely to generate broad participation where these supporting systems are absent.
While timely financial support emerged as a broadly shared priority, preferences for machinery access, technical assistance and other programme attributes varied across farmer groups, reinforcing that smallholders do not respond uniformly to programme incentives.
What the Evidence Suggests
The findings suggest that programme design is ultimately a question of prioritisation rather than accumulation. Some interventions – notably timely financial support and structured technical assistance – consistently reduce participation barriers, while the importance of other programme features depends on local conditions and farmer circumstances. Rather than attempting to maximise every programme attribute, policymakers should identify which forms of support constitute the common foundation of every programme and which are better adapted to different implementation contexts.
The evidence also demonstrates that scaling voluntary carbon markets is not simply a matter of increasing carbon prices. Whether carbon markets expand beyond isolated pilot projects will depend on whether programmes reduce financial risks, lower transaction costs and provide practical support throughout implementation. Well-designed incentives alone cannot compensate for weak delivery systems.
Lowering Participation Barriers
The evidence points to three complementary priorities for policymakers.
First, reduce financial barriers. Eighty-three percent of surveyed farmers indicated that they would be willing to invest in carbon farming if partial financial support were available to meet upfront costs and bridge delayed returns. Liquidity constraints should therefore be treated as a programme design challenge rather than a farmer weakness. Linking carbon credit programmes with existing agricultural credit systems, Farmer Producer Organisations (FPOs) and microfinance institutions could make participation significantly more accessible.
Second, strengthen farmer capabilities. Building farmers' understanding of programme requirements, monitoring and verification systems is as important as providing financial support. Training, extension services, field demonstrations and practical assistance can reduce uncertainty, improve compliance and build confidence in programme requirements. Simplifying participation procedures would further lower transaction costs, particularly for first-time participants.
Third, strengthen the institutional ecosystem. Well-designed carbon credit programmes alone will not create successful carbon markets. Public extension systems, Farmer Producer Organisations (FPOs), cooperatives, carbon project developers, financial institutions and local service providers all play complementary roles in expanding access to finance, technology, advisory services, and monitoring and verification. Strengthening this institutional ecosystem will be essential if voluntary carbon markets are to expand beyond isolated projects and become a viable pathway for large-scale farmer participation.
The Ministry of Environment, Forest and Climate Change, state agriculture departments, and institutions supporting the Green Credit Programme and emerging state-level carbon farming initiatives have an opportunity to embed these principles as India's carbon market continues to evolve.
As India builds its carbon market, the question is no longer whether smallholder farmers should participate, but whether carbon credit programmes enable them to participate at scale. Credible and inclusive carbon markets will depend not simply on carbon prices, but on programme designs that recognise farmer diversity, reduce barriers to participation and create the institutional conditions for farmers to engage with confidence.