Learn ESG/Glossary
Reference · 10 min read

ESG Glossary

20+ key ESG terms defined — from CSRD to Scope 3, from LkSG to VSME.

BRSR

Business Responsibility and Sustainability Reporting

India's mandatory ESG reporting framework for the top 1,000 listed companies, introduced by SEBI. Covers environmental, social, and governance topics.

CARB

California Air Resources Board

The enforcement body for California's SB 253 climate disclosure law. CARB is developing the reporting registry and verification standards for Scope 1, 2, and 3 emissions.

CBAM

Carbon Border Adjustment Mechanism

An EU mechanism that puts a carbon price on imports of certain goods (steel, aluminium, cement, fertilisers, electricity, hydrogen) from outside the EU. Importers must report embedded carbon content.

CDP

Carbon Disclosure Project

A global non-profit that runs a disclosure system for companies, cities, states, and regions to manage their environmental impacts. CDP questionnaires are widely used by buyers to assess supplier environmental performance.

CSRD

Corporate Sustainability Reporting Directive

The EU's mandatory sustainability reporting directive, replacing NFRD. Requires large EU companies to report on ESG topics under ESRS standards. Includes value chain (Scope 3) reporting requirements that affect non-EU suppliers.

CSDDD

Corporate Sustainability Due Diligence Directive

An EU directive requiring large companies to conduct due diligence on human rights and environmental risks in their supply chains. Unlike CSRD (reporting), CSDDD requires action — companies must prevent and remediate adverse impacts.

EcoVadis

EcoVadis Sustainability Ratings

A widely used third-party ESG rating platform for supply chains. Many large buyers require their suppliers to complete an EcoVadis assessment. Ratings cover environment, labour & human rights, ethics, and sustainable procurement.

ESRS

European Sustainability Reporting Standards

The reporting standards developed by EFRAG under CSRD. ESRS cover environmental (E1-E5), social (S1-S4), and governance (G1) topics. The VSME standard is a simplified version for SMEs in supply chains.

GHG Protocol

Greenhouse Gas Protocol

The world's most widely used greenhouse gas accounting standard. Developed by WRI and WBCSD, it defines Scope 1, 2, and 3 emissions and provides methodologies for calculating them.

GRI

Global Reporting Initiative

An international organisation that provides a comprehensive sustainability reporting framework (GRI Standards). GRI is widely used for voluntary ESG reporting and is referenced in many buyer questionnaires.

ISO 14001

ISO 14001 Environmental Management System

An international standard for environmental management systems. ISO 14001 certification demonstrates that a company has a systematic approach to managing its environmental impacts. Often requested by buyers as evidence of environmental management.

LkSG

Lieferkettensorgfaltspflichtengesetz

Germany's Supply Chain Due Diligence Act, requiring companies with ≥1,000 employees in Germany to conduct annual due diligence on their supply chains for human rights and environmental risks.

SA8000

Social Accountability 8000

An international social certification standard for decent workplaces. SA8000 covers child labour, forced labour, health and safety, freedom of association, discrimination, disciplinary practices, working hours, and remuneration.

SB 253

Senate Bill 253 — Climate Corporate Data Accountability Act

California law requiring companies with >$1 billion annual revenue doing business in California to publicly disclose Scope 1, 2, and 3 GHG emissions. Scope 3 includes supply chain emissions.

SECR

Streamlined Energy and Carbon Reporting

UK mandatory reporting framework requiring large UK companies to disclose their energy use and Scope 1 and 2 carbon emissions in their annual reports.

Scope 1

Scope 1 Emissions

Direct greenhouse gas emissions from sources owned or controlled by a company. Examples: burning fuel in company vehicles, natural gas in boilers, industrial process emissions.

Scope 2

Scope 2 Emissions

Indirect emissions from the generation of purchased electricity, steam, heat, or cooling consumed by a company. The emissions occur at the power plant, but the company is responsible for them.

Scope 3

Scope 3 Emissions

All other indirect emissions in a company's value chain — both upstream (from suppliers) and downstream (from customers). Typically represents 70-90% of a company's total emissions footprint.

TCFD

Task Force on Climate-related Financial Disclosures

A framework for disclosing climate-related risks and opportunities across governance, strategy, risk management, and metrics & targets. Mandatory for UK-listed companies and TSE Prime Market companies in Japan.

VSME

Voluntary SME Standard (ESRS)

A simplified version of the European Sustainability Reporting Standards (ESRS) designed for SMEs that are not directly subject to CSRD but are in the supply chains of companies that are. Buyers will use VSME to request data from their SME suppliers.

XRB

External Reporting Board (New Zealand)

New Zealand's standard-setting body for financial and sustainability reporting. XRB Aotearoa has developed climate-related disclosure standards (NZCS 1, 2, 3) based on TCFD recommendations.