ESG: Where Sustainability Meets Financial Reality

Introduction

Over the last few years, businesses in India and globally have been affected by climate change, social disruptions, governance failures, and increasing regulatory scrutiny. Extreme heatwaves and floods in India, supply‑chain disruptions, evolving workforce expectations, rising investor activism, and tighter disclosure norms have underscored a critical reality: financial performance alone is no longer sufficient to assess business resilience or long‑term value creation.

This shift in perspective has brought Environmental, Social and Governance (ESG) considerations to the centre of business and financial decision‑making. ESG is no longer a theoretical or peripheral concept. It is increasingly embedded into corporate reporting, risk management, assurance, valuation and strategic planning.

For decades, corporate performance was evaluated through traditional financial metrics such as revenue growth, profitability, return on capital and compliance with accounting standards. While these indicators remain necessary, they are no longer adequate on their own. Climate volatility, regulatory intervention, investor expectations and social accountability have reshaped how risk and value are assessed. ESG considerations have therefore moved from the margins of sustainability reports into the mainstream of financial decision‑making, influencing capital allocation, credit assessment, valuation, mergers and acquisitions, executive remuneration and regulatory oversight.

ESG Regulatory Landscape: A Brief Overview

The ESG regulatory framework has evolved over nearly two decades, transitioning from voluntary sustainability disclosures to mandatory, finance‑grade reporting aligned with capital markets.
Early ESG initiatives in the late 1990s were led by the Kyoto Protocol, where the concept of pricing carbon and greenhouse gas emissions was introduced for the first time. This Initiative was succeeded by global investor coalitions such as the UN Principles for Responsible Investment (PRI). During this phase, ESG reporting relied largely on voluntary frameworks such as the Global Reporting Initiative (GRI) and the Greenhouse Gas (GHG) Protocol, which established common methods for reporting environmental, social and emissions data.

The turning point came with the Paris Agreement in 2015, which prompted regulators and financial institutions to recognise climate change and sustainability issues as systemic financial risks. This momentum accelerated with the introduction of climate‑focused disclosure frameworks such as the Task Force on Climate‑related Financial Disclosures (TCFD), reframing environmental risks into governance, strategy and risk‑management discussions relevant to investors and lenders.

A major regulatory shift occurred between 2021 and 2023 with the establishment of the International Sustainability Standards Board (ISSB) and the issuance of IFRS S1 and IFRS S2, creating a global, investor‑focused baseline for sustainability‑related financial disclosures linked directly to enterprise value. In parallel, the European Union introduced the Corporate Sustainability Reporting Directive (CSRD) with mandatory disclosure and assurance requirements. In India, ESG regulation progressed from Business Responsibility Reporting to the SEBI‑mandated Business Responsibility and Sustainability Report (BRSR), with BRSR Core introducing standardised, assured ESG metrics from FY 2023–24 onwards. Collectively, these developments confirm that ESG disclosures are now regulated, auditable and decision‑useful, comparable in importance to financial reporting.

ESG and Climate Change Initiatives in India and Globally

India has committed to achieving Net Zero emissions by 2070 and achieved a significant milestone by reaching 50% non‑fossil fuel installed power capacity by June 2025, ahead of its 2030 target. National policies such as the National Action Plan on Climate Change (NAPCC), along with India’s global leadership through the International Solar Alliance and the Global Biofuel Alliance, reflect the country’s increasing focus on climate action.

Globally, developments such as the EU’s CSRD and the widespread adoption of ISSB‑aligned standards are driving convergence in sustainability reporting. At the same time, climate finance is increasingly being directed toward renewable energy, resilience and adaptation, reinforcing the financial relevance of ESG considerations.

ESG as a Way Forward

Independent assessments indicate that ESG integration significantly influences:

• Customer trust and brand value
• Capital allocation, partnerships and mergers and acquisitions
• Talent attraction and retention
• Financial performance through improved risk management
• Employee engagement
• Long‑term shareholder value

These trends demonstrate that ESG has evolved from a compliance‑focused exercise into a core strategic pillar, shaping competitiveness, resilience and long‑term growth. ESG now supports both risk mitigation and sustainable value creation, making it an essential component of modern corporate strategy.

How ESG Became an Integral Part of Finance

ESG has transitioned from a sustainability discussion to a core financial consideration, embedded within capital markets, corporate finance and regulatory frameworks. Environmental, social and governance issues now have clear and measurable impacts on cash flows, asset values, risk profiles and access to capital.

Regulators and central banks increasingly classify climate‑related risks as systemic financial risks, capable of disrupting markets and affecting financial stability. In response, global frameworks such as IFRS S1 and IFRS S2 align ESG disclosures with financial reporting, requiring companies to disclose sustainability‑related risks affecting enterprise value. In India, SEBI’s BRSR and BRSR Core have transformed ESG reporting into standardised, metrics‑driven disclosures supported by internal controls and assurance.

Where ESG Fits into Core Financial Activities

ESG is now embedded across key financial functions.

In capital budgeting, companies consider carbon costs (rising insurance costs, fuel duties) regulatory exposure (carbon tax) and transition risks (tech obsolescence).

In valuations, analysts assess stranded asset risks and long‑term sustainability.

In credit assessment, lenders are beginning to incorporate climate stress testing, particularly for long‑tenor loans and project finance.

In mergers and acquisitions, ESG due diligence is used to identify environmental, supply‑chain and governance risks that may affect transaction value.

In capital markets, investor focus on ESG has given rise to new instruments such as sustainability-linked loans (SLLs), green bonds, social bonds and transition bonds.  

Corporate reporting has evolved to demand ESG data that is accurate, consistent, traceable and increasingly assured reflecting the same discipline applied to financial statements. ESG information is now treated as decision‑relevant financial data, not narrative commentary.

What This Means for Chartered Accountants

The Chartered Accountancy profession has previously adapted to accounting standards, internal control systems, risk management and assurance frameworks. ESG represents a continuation of this evolution. Chartered Accountants now play a central role in ESG reporting and assurance, climate and enterprise risk analysis, ESG ratings, green and sustainability‑linked finance, ESG due diligence for transactions, and strengthening governance and ESG data systems.

Globally, regulators and standard setters expect sustainability information to be prepared with the same rigour as financial data. Professional bodies such as the IFRS Foundation, ICAEW and IFAC emphasise that accountants are uniquely positioned to measure, validate and assure ESG information due to their expertise in data governance, internal controls and assurance methodologies. In India, SEBI’s BRSR and BRSR Core framework further reinforces this role by requiring standardised ESG disclosures and independent assurance for a growing number of listed entities.

The credibility of ESG disclosures ultimately depends on accuracy, independence, consistency and public trust the foundational principles of the Chartered Accountancy profession.

“ESG is where sustainability meets financial relevance.”

ESG has moved beyond intent and communication to become decision‑useful information for regulators and markets. As sustainability risks increasingly translate into financial consequences, ESG is now inseparable from how value, risk and governance are assessed.