ESG and Net Zero: What’s the Difference and How They Connect

Companies hear the terms ESG and net zero used almost interchangeably in boardrooms, investor calls and regulatory filings. They are not the same thing. ESG is a framework that covers environmental, social and governance factors. Net zero is a measurable climate commitment that sits inside the environmental pillar of that framework. Understanding where each concept starts and stops is essential for anyone building a credible sustainability strategy.

What Is ESG?

ESG stands for Environmental, Social and Governance. It is a set of criteria used by investors, regulators and companies to evaluate non-financial risks and opportunities. The environmental pillar covers topics such as greenhouse gas emissions, water use, waste management and biodiversity. The social pillar addresses labor practices, human rights, community impact and supply chain standards. The governance pillar deals with board composition, executive compensation, anti-corruption policies and shareholder rights.

ESG is not a single standard. Multiple frameworks exist to measure and report ESG performance. The most widely referenced include the Global Reporting Initiative (GRI Standards), the standards issued by the International Sustainability Standards Board (IFRS S1 and IFRS S2), and the European Sustainability Reporting Standards (ESRS) used under the Corporate Sustainability Reporting Directive (CSRD). Each framework emphasizes different metrics, but all share the goal of making non-financial performance transparent and comparable.

What Is Net Zero?

Net zero means reducing greenhouse gas emissions to the greatest extent possible and balancing any residual emissions with permanent carbon removals so that the net amount released into the atmosphere is zero. The concept is grounded in climate science, specifically the findings of the Intergovernmental Panel on Climate Change (IPCC), which concluded that global net CO2 emissions must reach zero around 2050 to limit warming to 1.5 °C above pre-industrial levels.

The most recognized corporate standard for setting net zero targets is the Science Based Targets initiative (SBTi) Corporate Net-Zero Standard, published in October 2021 and updated since. It requires companies to set near-term targets (typically 5 to 10 years) covering at least 95% of Scope 1 and Scope 2 emissions and at least 67% of Scope 3 emissions where Scope 3 is significant. The long-term target must reduce emissions by at least 90% before any residual emissions are neutralized through removals.

The Greenhouse Gas Protocol, maintained by the World Resources Institute (WRI) and the World Business Council for Sustainable Development (WBCSD), provides the accounting methodology most net zero commitments rely on. It defines Scope 1 (direct emissions), Scope 2 (purchased energy) and Scope 3 (value chain emissions).

ESG Net Zero: How the Two Connect

Net zero is one objective within the environmental dimension of ESG. A company can pursue a net zero target without having a complete ESG strategy, and a company can report on ESG factors without committing to net zero. However, the two work best together.

When investors evaluate ESG performance, climate risk is often the single largest factor in the environmental pillar. A credible net zero target backed by science-based milestones strengthens a company’s ESG profile because it demonstrates a quantified, time-bound plan rather than a vague commitment. Conversely, an ESG framework gives net zero targets strategic context: it ensures that decarbonization efforts do not come at the expense of worker safety, supply chain fairness or governance integrity.

Regulatory trends reinforce the connection. Under the EU’s CSRD, companies must disclose transition plans that align with the 1.5 °C objective, effectively embedding net zero planning into mandatory ESG reporting. IFRS S2 (Climate-related Disclosures) also requires disclosure of any climate targets, including net zero commitments, their scope and the methodology behind them.

Who Needs to Pay Attention

Large listed companies in the EU are already subject to CSRD requirements. In the United States, the SEC adopted climate disclosure rules in March 2024, but they were stayed during litigation, and in March 2025 the SEC voted to end its defense of them in court. In Brazil, Resolução CVM n.º 193/2023 set up sustainability reporting under the IFRS S1 and S2 standards for listed companies. It was made mandatory from fiscal year 2026, but Resolução CVM 244/2026 turned it into an option: from January 1, 2027, a listed company that chooses not to file a sustainability report must explain why in a market announcement.

Private companies are not exempt from pressure. Large buyers increasingly require climate data from suppliers. Financial institutions factor ESG ratings and net zero alignment into lending and underwriting decisions. Any company in a global supply chain may eventually need both an ESG disclosure process and a credible decarbonization pathway.

Step by Step: Integrating Net Zero into an ESG Strategy

1. Measure your baseline. Conduct a greenhouse gas inventory following the GHG Protocol. Quantify Scope 1, 2 and 3 emissions. This inventory becomes the environmental foundation of your ESG data.
2. Identify material topics. Use a double materiality assessment (required under CSRD, recommended broadly) to determine which ESG topics are most relevant to your business and stakeholders. Climate and emissions will almost certainly rank high.
3. Set science-based targets. Submit near-term and long-term targets to the SBTi for validation, or follow equivalent methodologies such as sector-specific pathways published by the Transition Plan Taskforce (TPT) in the UK.
4. Build a transition plan. Map the capital expenditures, technology changes and operational shifts needed to hit each milestone. Include governance mechanisms: who owns the targets, how progress is reviewed and what happens when milestones are missed.
5. Report transparently. Integrate net zero progress into your ESG report. Disclose absolute emissions, intensity metrics, the percentage of targets achieved and any use of carbon credits. Follow the reporting standard applicable to your jurisdiction.
6. Review annually. Climate science, regulation and market expectations evolve. Reassess targets, update your inventory and adjust the transition plan at least once per year.

Common Mistakes

• Treating net zero as the entire ESG strategy. Climate matters, but ESG also covers social and governance factors. A company that hits net zero while ignoring labor rights or board diversity still carries material risk.
• Setting a net zero target without interim milestones. A 2050 pledge with no 2030 checkpoint is not actionable. Investors and regulators now expect short-term and medium-term targets.
• Relying heavily on carbon offsets instead of emission reductions. The SBTi Corporate Net-Zero Standard limits the use of offsets to residual emissions (no more than 10% of the base-year total). Offsets cannot substitute for actual decarbonization.
• Confusing carbon neutral with net zero. Carbon neutral typically means compensating current emissions through credits. Net zero requires deep absolute reductions first, with removals used only for what cannot be eliminated.
• Reporting ESG data without third-party verification. Unverified data undermines credibility. Limited or reasonable assurance from an independent provider is increasingly expected by regulators and investors.

What to Do Now

If your company reports on ESG but has no climate target, start with a GHG inventory and evaluate whether a science-based net zero commitment is appropriate for your sector and size. If your company has a net zero pledge but limited ESG governance, expand your reporting to cover social and governance dimensions before regulators or investors force the issue. In both cases, the practical first step is the same: assign clear ownership, allocate budget for data collection and assurance, and choose a reporting framework that matches your regulatory obligations. The gap between ESG and net zero is not a gap at all when both are managed as parts of one integrated strategy.

Primary sources: Global Warming of 1.5 °C, Summary for Policymakers (IPCC, 2018); Corporate Net-Zero Standard V1.3.1 (SBTi, 2026); IFRS S2 Climate-related Disclosures (ISSB, 2023); CVM Resolution 193/2023 and amendments, official text in Portuguese (CVM, 2023-2026); SEC Votes to End Defense of Climate Disclosure Rules (U.S. SEC, 2025).