Researchers at the University of California, Los Angeles (UCLA) have analyzed the chemical signatures of fossilized teeth from Montana to determine the body temperature of the Tyrannosaurus rex (T. rex) for the first time. Using clumped isotope thermometry, the study revealed that the T. rex maintained a body temperature of approximately 97 degrees Fahrenheit (36.3 degrees Celsius), which is close to that of modern mammals like humans and elephants. This provides strong evidence that T. rex was an endothermic (warm-blooded) dinosaur with an active metabolism, capable of regulating its internal temperature independently of the external environment.
Environment Pulse Desk: As the world grapples with climate change and the urgent need for decarbonization, a quiet revolution is taking place in the banking and financial sector. ‘Green Loans’ – loans exclusively meant for environmentally beneficial projects – are emerging as a powerful new paradigm, transforming the way finance interacts with nature and redefining the concept of profitable lending.
Traditionally, loans were evaluated purely on financial viability, credit score and collateral. The green loan framework adds a crucial third dimension: environmental impact. These loans are designed to fund projects that actively contribute to sustainability, such as rooftop solar installations, wind farms, energy-efficient housing and commercial buildings, electric vehicles and charging infrastructure, waste management and recycling systems, water conservation and rainwater harvesting, and organic agriculture.
According to banking experts, the concept is simple yet transformative – capital becomes nature. When a bank lends for a solar plant, the return is not just measured in interest earned but in tonnes of carbon emissions avoided, in megawatts of clean energy generated, and in long-term ecological security for future generations.
What Makes Green Loans Different?
- Purpose-Bound Lending: Unlike general-purpose loans, the funds cannot be diverted. They must be used exclusively for certified green projects as per the internationally recognized Green Loan Principles (GLP).
- Ethical and Transparent: Banks ensure complete transparency in tracking the end-use of funds, often through third-party audits, green certification, and annual impact reporting that details the environmental benefits achieved.
- Lower Cost of Capital: To incentivize adoption, many public and private banks including SBI, Bank of Baroda, HDFC Bank, and several small finance banks are offering green loans at 20-50 basis points lower interest rates, along with waived processing fees and faster approvals.
- Low-Carbon Investment Focus: Every green loan contributes directly to India’s ambitious climate goals – achieving 500 GW of non-fossil fuel capacity by 2030 and net-zero emissions by 2070.
The Growing Market and Its Beneficiaries
The Reserve Bank of India (RBI) has already issued a framework for accepting green deposits and has encouraged banks to integrate ESG – Environmental, Social and Governance – criteria into their core lending strategy. Supported by international agencies like the World Bank and SIDBI’s dedicated green financing schemes for MSMEs, the green loan portfolio in India has grown by over 30% in the last two years.
The biggest beneficiaries are Micro, Small and Medium Enterprises (MSMEs) that want to shift to energy-efficient machinery, farmers opting for solar pumps and organic inputs, clean-tech and climate startups, and individual home owners installing solar panels, buying electric vehicles, or constructing IGBC-certified green homes.
“The beauty of green loans is the circular benefit,” explains a senior economist. “It reduces the borrower’s monthly energy cost, it reduces the nation’s carbon footprint, and it builds a low-risk, future-ready portfolio of sustainable assets for the bank. It is a genuine win-win-win model.”
Challenges and The Road Forward
Despite the promise, challenges remain. Lack of awareness among rural and semi-urban borrowers, absence of a single standardized green certification system, and the perception of complex paperwork are slowing adoption at the grassroots level.
Financial institutions are now partnering with fintechs to simplify the process, creating mobile-based assessment tools where a farmer can upload a photo of his field and get instant eligibility for a solar loan, or a household can calculate lifetime savings from a green home loan in seconds.
Green loans are more than just a financial product; they represent a fundamental mindset shift in banking. From reducing carbon footprint to reinvesting profits into sustainability and ultimately building a resilient, greener economy, the journey reflects a new definition of prosperity where profit and planet grow together.
With the right policy push, public awareness, and continued banking innovation, green loans may soon become not just an alternative lending window, but the mainstream paradigm of finance in India.
Also Read: Spain, Portugal and Luxembourg Push for Ambitious EU 2040 Renewable Energy Target

