As climate change accelerates, the need for scalable, commercially viable sustainability solutions has never been greater. While many climate technologies struggle to move beyond pilot projects, GreenJams has demonstrated that innovation can create both environmental impact and business value. By transforming agricultural residues and industrial waste into carbon-negative construction materials, the company is redefining how buildings are designed and built. In this exclusive interaction, Tarun Jami, Founder & CEO of GreenJams, discusses what it takes to scale climate-tech in India, the evolution of the country’s sustainability ecosystem, the culture of innovation driving GreenJams, and why startups will play a pivotal role in building a low-carbon future.
Q1. Many climate technologies struggle to scale. What is different about GreenJams?
Scalability comes from solving multiple problems with one integrated solution. Our technology simultaneously addresses crop residue burning, industrial waste utilisation, embodied carbon reduction and construction efficiency. Instead of treating these as separate environmental challenges, we connect them within one material ecosystem. That creates value for farmers, industries, developers, and society at large. When innovation delivers both environmental and commercial returns, scaling becomes a business opportunity rather than relying solely on policy support or subsidies. That integrated approach has been central to GreenJams’ growth strategy.
Q2. How has India’s sustainability ecosystem evolved for climate-tech startups?
India’s sustainability ecosystem has matured significantly over the past few years. Developers, policymakers, investors, and even customers increasingly recognise that economic growth and climate resilience must progress together. Earlier, sustainability was often viewed as an optional initiative or a compliance requirement. Today, it is becoming a strategic business priority. The conversation has shifted from asking, “Why sustainability?” to “How do we implement it at scale?” That shift creates tremendous opportunities for climate-tech startups that can deliver practical, commercially viable solutions to real-world challenges.
Q3. How does innovation happen inside GreenJams?
Innovation at GreenJams is driven by a combination of scientific research, engineering excellence and real-world application. Construction materials cannot succeed based solely on sustainability claims—they must consistently meet demanding performance standards in strength, durability and reliability. Every product undergoes rigorous testing before reaching the market because builders need complete confidence in the materials they use. We constantly work on improving formulations, manufacturing efficiency, and material performance. For us, innovation is not about inventing something different; it’s about creating solutions that the industry can trust and adopt at scale.
Q4. What role can startups play in transforming the construction sector?
Startups bring a fresh perspective to an industry that has traditionally been slow to change. They have the flexibility to challenge long-standing assumptions, experiment rapidly, and commercialise breakthrough technologies much faster than conventional players. Climate challenges require bold thinking and cross-sector collaboration, and startups are uniquely positioned to drive that transformation. However, meaningful impact comes not just from disruption but from working alongside developers, manufacturers, governments and research institutions to create scalable solutions that can reshape the industry.
Q5. What advice would you give aspiring climate entrepreneurs?
Focus on solving fundamental problems instead of chasing short-term trends. Climate entrepreneurship is about building solutions that create measurable environmental impact while also making strong commercial sense. If your innovation reduces costs, improves efficiency, and solves a genuine industry challenge, adoption becomes much easier. Equally important is patience. Building deep-tech and climate businesses requires persistence, continuous learning, and long-term commitment. The most successful innovations are those that people adopt because they are better—not simply because they are sustainable.
