Environmental Social Governance Guide — ESG Factors Explained
ESG breaks down into three pillars. Each pillar covers specific issues that can materially affect company performance. Understanding what each pillar includes helps investors evaluate ESG ratings and identify material factors for different industries.
The environmental (E) pillar covers: climate change (greenhouse gas emissions (Scope 1, 2, 3), carbon intensity and reduction targets, climate risk management and scenario analysis), natural resources (water usage and scarcity risk, waste management and recycling, raw material sourcing and deforestation, biodiversity impact), pollution and emissions (air and water pollution, toxic emissions, regulatory compliance), environmental opportunities (clean technology and renewable energy investment, products and services enabling environmental solutions), and supply chain environmental management (supplier environmental standards, circular economy practices). The social (S) pillar covers: human capital management (labor practices, employee health and safety, talent attraction and retention, training and development, fair wages and benefits), diversity and inclusion (workforce, management, and board diversity, pay equity, inclusive culture), customer and product responsibility (product safety and quality, data privacy and security, responsible marketing, access to essential services (healthcare, finance, communications)), community relations (community engagement and investment, respect for indigenous rights, local economic impact), human rights (supply chain labor standards, modern slavery prevention, conflict minerals), and social opportunities (access to healthcare, education, and financial services, affordable housing and community development). ESG materiality map →
Governance Pillar and Materiality
The governance (G) pillar covers: board structure (board composition and independence, board diversity (skills, gender, background), separation of CEO and board chair roles, board oversight of ESG issues, board expertise in relevant areas), executive compensation (pay-for-performance alignment, ESG-linked compensation metrics, clawback policies, CEO pay ratio), shareholder rights (one-share-one-vote structure, takeover defenses (poison pills), shareholder meeting accessibility, proxy access rights), business ethics (anti-corruption and bribery policies, whistleblower programs, political contributions and lobbying disclosure, tax transparency), risk management (enterprise risk management framework, internal controls and audit, cybersecurity oversight, business continuity planning), disclosure and transparency (financial reporting quality, ESG disclosure quality and standards, timely and accurate reporting). Materiality varies by industry: climate change is most material for energy, utilities, and transportation. Water scarcity is most material for agriculture, beverages, and semiconductor manufacturing. Data privacy is most material for technology, financial services, and healthcare. Labor practices are most material for retail, hospitality, and manufacturing. The Sustainability Accounting Standards Board (SASB) provides industry-specific materiality maps identifying the most financially relevant ESG issues for each of 77 industries. Using materiality-focused ESG analysis improves the signal-to-noise ratio compared to generic ESG scores. Industry materiality map →
FAQs
Which ESG pillar is most important for investment returns?
Governance (G) has the strongest and most consistent relationship with financial performance. Poor governance (weak board oversight, excessive executive pay, corruption, accounting irregularities) directly leads to value destruction. Governance is the "table stakes" pillar — without good governance, good E and S performance often doesn't matter. Environmental (E) factors have become increasingly material as climate change accelerates, carbon pricing expands, and regulations tighten. Climate risk has measurable effects on asset values. Social (S) factors have the least consistent link to stock returns, though they matter in specific industries (labor practices for retail, data privacy for tech). S factors are harder to quantify and can be controversial (e.g., the debate over ESG and political issues). A balanced approach that weights all three pillars with industry-specific materiality is the most robust. Governance factors should be non-negotiable minimum standards. Environmental and social factors should be evaluated based on financial materiality for each industry.
How do ESG factors differ by industry?
ESG factor materiality varies significantly by industry, which is why standardized ESG scores can be misleading. SASB's materiality map identifies the most relevant issues for each industry. Examples: oil and gas (greenhouse gas emissions, water management, community relations, worker safety, climate regulation). Technology (data privacy, cybersecurity, talent management, intellectual property protection, supply chain labor standards). Banks (data privacy, financial inclusion, systemic risk management, executive compensation, anti-money laundering). Healthcare (product safety, clinical trial ethics, drug pricing, patient access, data privacy). Retail (supply chain labor standards, product quality, packaging and waste, energy management). Agriculture (water usage, land use and biodiversity, pesticide management, food safety, labor practices). Real estate (energy efficiency, climate adaptation, green building certification, community impact). A company can have excellent ESG performance on non-material issues while ignoring the most relevant ones. Smart ESG investing focuses on material issues for each industry, not a one-size-fits-all score.