Industrial heat decarbonisation is as much an air quality and worker health issue as a climate issue.

Q. Industrial heat decarbonisation is as much an air quality and worker health issue as a climate issue. (15 marks, 250-350 words)

Industrial process heat in India is still largely raised by burning coal, furnace oil and pet coke in boilers [3], and combustion never emits carbon alone — it releases sulphur oxides, nitrogen oxides and particulates at the same chimney. The statement is therefore largely valid, though the climate driver remains indispensable.

The air quality and health case - Boiler emissions are low-stack, point-source pollutants released inside dense industrial clusters (Tiruppur textiles, Surat chemicals) that adjoin residential areas — unlike CO₂, their harm is immediate and local. - Occupational exposure: workers on the shop floor inhale PM and SO₂ continuously, making clean heat a labour-welfare and productivity question, not only an environmental one. - Boiler pollutants are direct targets of the National Clean Air Programme, so heat decarbonisation delivers NCAP gains that no offset mechanism can.

Why the climate framing still leads - MSMEs alone emitted roughly 135 MtCO₂e (2022) from fossil-based energy use [1], and fossil fuels supplied about 83% of India's energy mix in 2025 [2]. - Trade pressure — the EU's carbon border mechanism — prices carbon, not particulates [1], pushing firms toward climate accounting first.

Convergent solutions - Industrial heat pumps now supply heat up to 140–160°C at three-to-five times the efficiency of gas boilers, with paper, food and chemicals offering the largest near-term scope [4] — eliminating CO₂ and local pollutants together. - NITI Aayog's three levers — energy-efficient equipment, alternative fuels, green electricity [1] — plus biomass-based green steam for MSMEs [3] and process electrification [2].

Caveats: a coal-heavy grid displaces rather than removes emissions, and biomass combustion still emits particulates; thin MSME margins and weak green-finance access remain binding constraints [1].

Clean industrial heat should thus be governed as a triple-dividend intervention — climate, clean air, worker health. Embedding heat-pump and biomass retrofits within NCAP funding, BEE efficiency norms and concessional MSME credit would align India's net-zero pledge with the constitutional right to a healthy environment under Article 21.

(~320 words)

Sources: 1. Roadmap for Green Transition of MSMEs, NITI Aayog (January 2026) — MSME emissions of ~135 MtCO₂e (2022), CBAM exposure, three green-transition levers, MSME finance constraints 2. Scenarios Towards Viksit Bharat and Net Zero — Sectoral Insights: Industry, NITI Aayog (February 2026) — fossil share of energy mix in 2025; electrification of industrial processes as a transition strategy 3. Bioenergy to Play Pivotal Role in Decarbonising MSMEs — PIB, Ministry of New and Renewable Energy — MSME reliance on coal, furnace oil and pet coke for steam; biomass-based green steam and heat pathway 4. The Future of Heat Pumps — Executive Summary, IEA — heat delivery up to 140–160°C, three-to-five times the efficiency of gas boilers, near-term potential in paper, food and chemicals