How Indian States Are Tackling Climate Change: Successes and Challenges

India’s fight against climate change cannot be won from New Delhi alone. With vastly different geographies – from Himalayan glaciers to coastal deltas to arid deserts – each state faces its own unique set of climate vulnerabilities. That’s why India adopted a decentralized approach, directing all states and union territories to prepare their own climate action plans. Some states have made impressive progress, while others are still catching up. Here’s a look at how Indian states are tackling climate change, what’s working, and what’s holding them back.

State Action Plans on Climate Change: the backbone of India’s climate response 🔗

India’s National Action Plan on Climate Change (NAPCC), launched in June 2008, outlined eight national missions covering areas like solar energy, water, sustainable agriculture, and energy efficiency. However, applying a single national plan uniformly across a country as diverse as India was never going to work. In 2009, the Government of India directed all state governments and union territories to prepare State Action Plans on Climate Change (SAPCCs), consistent with the NAPCC strategy.

The idea was straightforward: let each state assess its own climate vulnerabilities, set its own priorities, and design actions that match its local conditions – all while staying aligned with national goals. States conduct baseline assessments of current conditions, evaluate vulnerability to climate change impacts, examine future climate projections, and identify knowledge gaps as part of this process. As of recent updates, 34 states and union territories have prepared their SAPCCs, outlining sector-specific and cross-sectoral priority actions including adaptation and climate-resilient infrastructure development.

The combined budgetary requirement for implementing all SAPCCs is approximately INR 11.32 lakh crores (about USD 188.66 billion) – a figure that underscores the sheer scale of climate action needed across India’s diverse regions.

Delhi: addressing climate risks in the national capital 🔗

Delhi’s SAPCC is being prepared on the lines of the NAPCC, covering key sectors including water resources, forest, biodiversity and horticulture, transportation, health, energy and power, urban planning, and vulnerability assessment. As one of the fastest-growing urban centres in the country, Delhi faces mounting pressures from pollution, depleting natural resources, and increasingly unpredictable weather.

The Delhi government introduced a draft of its updated SAPCC, focusing on seven critical sectors: energy, urban planning, water management, forest and green cover, transport, agriculture, and health. The plan includes proposals such as installing solar panels on rooftops to generate 750 MW of solar power, converting all streetlights to LED by 2030, and deploying low-cost sensors for flood warnings.

According to the draft plan, Delhi is projected to suffer losses of Rs 2.75 lakh crore by 2050 due to climate change impacts, making the urgency of these measures very clear. The updated plan was prepared in collaboration with the German Technical Cooperation Group (GIZ) and institutes such as IIT Delhi and GGSIPU.

Water conservation as a climate priority 🔗

Water scarcity is one of Delhi’s most pressing climate-related challenges. The Government of NCT of Delhi has adopted best practices across sectors including water conservation, greening, waste management, and energy conservation. The city’s updated climate plan also emphasises reducing dependence on hydropower sourced from other states, since climate change can impact water flow and affect hydropower capacity. Instead, the plan pushes for expanding renewable energy sources within the city itself.

Tamil Nadu: a frontrunner in climate adaptation 🔗

Among Indian states, Tamil Nadu stands out for its comprehensive and innovative approach to climate action. This coastal state in southern India, with a population of 68 million, is routinely impacted by floods, droughts, and cyclones that cause catastrophic economic losses – approximately $300-500 million per climate disaster.

Tamil Nadu recently launched its District Climate Mission initiative across all 38 districts , making it the first Indian state to institutionalize climate adaptation at the district level. Every agency – including departments of water, public works, energy, and transport – now has climate adaptation as part of their remit. This represents a shift from treating climate change as a standalone environmental issue to embedding it within everyday governance.

The ClimaRice project: science meets farming 🔗

One of Tamil Nadu’s most notable initiatives is the ClimaRice project – an intercontinental scientific collaboration that specifically addresses climate impacts on rice production in the drought-prone Cauvery Basin. This region, often called Tamil Nadu’s rice bowl, faces significant climate vulnerability due to shifting monsoon patterns and rising temperatures.

The project follows a multidisciplinary approach, integrating natural and social sciences and bringing science closer to policy makers. It involves field-testing adaptation measures with local farmers, producing actionable insights on how changing rainfall patterns and extreme weather events affect rice production. Findings from the project have directly informed the development of adaptation strategies now being promoted throughout the state.

Tamil Nadu has also pushed for the System of Rice Intensification (SRI), which reduces water use by up to 30 percent and cuts methane emissions – demonstrating how agricultural resilience and emission reduction can go hand in hand.

Jharkhand’s solar policy: transitioning from coal to clean energy 🔗

Jharkhand, a state traditionally dependent on coal-fired power, is charting a new path with its ambitious solar energy policy. The state boasts an average solar radiation of 4.5 to 5.5 kWh/m², with over 300 clear sunny days annually. Recognizing this potential, the Jharkhand State Solar Power Policy 2022 sets the goal of deploying a cumulative capacity of 4,000 MW by 2026 through a diversified portfolio across scales, locations, and applications.

Through this policy, Jharkhand intends to become a leader in solar energy adoption and contribute to India’s clean energy ambition by bringing energy transition closer to communities, businesses, and industries. The policy provides a roadmap covering utility-scale solar parks, distributed grid-connected systems, rooftop installations, and off-grid systems.

A decentralized approach to energy 🔗

What makes Jharkhand’s approach distinctive is its emphasis on decentralized energy. Instead of focusing only on large solar parks, the government has chosen a distributed model that places solar assets directly where energy is consumed. This means farmers, rural households, and government buildings are at the centre of the transition.

One of the most important interventions is the rollout of PM-KUSUM Component-B, which replaces diesel-based irrigation with solar-powered pump sets. This addresses a long-standing problem for Jharkhand’s farmers, who face unreliable grid supply and rising diesel costs. More than 3,000 government buildings now host rooftop solar plants, generating 82 MW of power collectively, saving the state an estimated Rs 66-70 crore annually.

Barriers to effective implementation 🔗

Despite the progress made, Indian states face several persistent challenges in turning their climate plans into on-the-ground action.

Inadequate financing 🔗

Funding remains the biggest hurdle. With limited funding support, implementation of the SAPCCs and NAPCC has been a major challenge. Many states drafted their plans assuming that financial support would come from the central government or international sources, but this hasn’t always materialized. Resource constraints persist as states assumed that funding would come from the central government or from elsewhere.

Lack of local climate data 🔗

Effective climate action requires reliable, granular data – and many states simply don’t have it. Maintaining real-time, accurate data across all districts requires technical capacity and trained human resources, which are in short supply. Without district-level climate projections, it becomes difficult to prioritize actions or measure progress.

Coordination gaps across government levels 🔗

A lack of leadership and political will, partly due to the SAPCC’s top-down approach and already existing climate strategies, has hampered implementation. Plans often lack specificity – they aren’t always clear enough to guide implementation at the department level. There is also a disconnect between state-level planning and district-level execution, with line departments often unclear about their role in climate action.

Agricultural emission challenges 🔗

Managing methane emissions from rice cultivation and livestock requires new techniques that farmers may struggle to adopt. Changing long-established farming practices is difficult, especially when farmers are already dealing with income uncertainty and limited access to extension services.

Role of international aid and partnerships 🔗

International agencies have played a critical role in helping Indian states develop and implement their climate plans. Organizations including GIZ, UNDP, the World Bank, and the UK Department for International Development provide technical assistance to states, helping them develop robust plans that balance adaptation and mitigation while advancing development objectives.

GIZ’s support for India’s climate goals 🔗

Germany’s development agency GIZ has been one of the most active international partners. The GIZ-supported ICCC project provides studies and models for climate protection and resilience to India’s Ministry of Environment, Forests and Climate Change (MoEFCC), while also promoting network-building between key stakeholders.

Through its CAFRI project, GIZ has been working to reduce climate change risks for vulnerable population groups in states like Himachal Pradesh and Uttar Pradesh, focusing on planning, implementation, and financing of climate adaptation. GIZ has also supported the development of an academic centre of excellence for climate change adaptation at IIT Delhi and helped Delhi prepare its updated SAPCC.

The World Bank’s contribution 🔗

The World Bank has been supporting India’s climate resilience across multiple sectors. The Bank is supporting India’s Atal Bhujal Yojana – the world’s largest community-led groundwater management program – in seven states. It has also been working with India since 2010 to protect communities along the western and eastern coasts through mangrove planting and species restoration.

In agriculture, World Bank projects in several states provide locally adapted packages that help increase agricultural productivity, supporting farmers in diversifying cropping patterns and improving soil and water management. The Bank is also helping India implement the world’s largest dam rehabilitation program, modernizing around 300 large dams to improve safety and water security.

UNDP’s framework support 🔗

The UNDP partnered with India’s Ministry of Environment and Forests to develop a Common Framework for SAPCC preparation, enabling a consistent methodology for identifying state priorities and developing adaptation and mitigation options. This framework has been instrumental in bringing a structured approach to what could otherwise have been an inconsistent process across states.

What’s working and what needs to change 🔗

The decentralized model of climate action in India has clear strengths. States like Tamil Nadu are demonstrating that when climate adaptation is embedded into every level of governance, real progress is possible. Jharkhand’s solar policy shows that even traditionally fossil-fuel-dependent states can pivot towards renewable energy with the right incentives and institutional support.

However, scaling these successes requires addressing the structural gaps that hold many states back. More dedicated climate finance – both domestic and international – is essential. States need better access to localized climate data to make informed decisions. And perhaps most importantly, there needs to be stronger institutional coordination between national, state, and district levels to ensure plans don’t just remain on paper.

The international partnerships with GIZ, the World Bank, and UNDP have proven valuable, but they cannot substitute for sustained domestic investment in climate capacity. As India updates its Nationally Determined Contributions and works towards its net-zero goals, the role of states will only become more important.

What do you think? Can India’s decentralized approach to climate action become a model for other large, diverse nations? And what would it take for states with limited resources to match the progress of frontrunners like Tamil Nadu?

References

1. https://www.nibio.no/en/projects/climarice
2. https://medium.com/@CAGChennai/tamil-nadus-journey-towards-sustainability-linking-climate-action-and-sdgs-6b03b5aed96c
3. https://jreda.com/
4. https://www.giz.de/en/projects/climate-adaptation-and-financing-rural-india
5. https://www.worldbank.org/en/country/india/brief/advancing-climate-adaptation-building-resilience-to-climate-change-in-india