Why greenwashing is endemic
Greenwashing is not always deliberate. It exists on a spectrum from honest overstatement (using imprecise language) to strategic deception (publishing misleading claims backed by cherry-picked data). The structural incentives are powerful: ESG-positive framing attracts capital, reduces regulatory scrutiny, and builds brand value — all with limited verification cost.
The verification gap is the root cause. Until mandatory, standardised, audited sustainability reporting is universal, companies can self-describe their environmental and social performance with minimal accountability. Even where frameworks like CSRD or ISSB create mandatory disclosure, the underlying data quality and assurance standards continue to evolve.
The OpenESG classification system
We classify every news item and disclosure against three verdicts: Genuine (independently verified, material, credible), Questionable (plausible but unverified or selective), and Greenwashing (contradicted by evidence, misleading, or backed by offset accounting that masks real emissions). A company can have a high ESG score alongside greenwashing flags if the score model is disclosure-heavy.
The 20 due diligence questions
Group 1: Data quality and verification
Questions 1–5
- Is the environmental data externally assured by a credible third party (e.g., Deloitte, PwC, Bureau Veritas, DNV)?
- Does the assurance cover Scope 3 emissions, or only Scopes 1 and 2?
- Is the data from the same year as the report, or is it 12–18 months old?
- Are the measurement methodologies (e.g., GHG Protocol) clearly cited and consistently applied year-over-year?
- Does the company use a consistent baseline year, or has it been reset to make progress look better?
Group 2: Claims vs. performance
Questions 6–10
- Does the company's climate marketing claim match its actual absolute emissions trend (i.e., are emissions going down, not just intensity)?
- When the company claims '100% renewable energy,' does this apply to all operations globally, or just selected sites?
- Are carbon offset claims based on high-quality, independently verified offsets (e.g., Gold Standard, Verra VCS) — or are they cheap, low-integrity credits?
- Does the company claim a net-zero target but lack a credible interim pathway (e.g., SBTi validation) to get there?
- Are the highlighted achievements (e.g., 'reduced emissions by 30%') based on absolute reductions, or relative intensity reductions while the business grows?
Group 3: Consistency and contradictions
Questions 11–15
- Does the company's sustainability marketing contradict its lobbying positions (e.g., claiming climate leadership while lobbying against carbon pricing legislation)?
- Does the company's ESG report cherry-pick good years or geographies while omitting underperforming regions?
- Is there a significant controversy in the news (labour violations, environmental spills, regulatory fines) that is absent from the ESG report?
- Does the company report 'record investment in sustainability' while absolute environmental performance stagnates or worsens?
- Are the company's sustainability goals binding and tied to executive compensation — or merely aspirational?
Group 4: Supply chain and Scope 3
Questions 16–20
- Does the company report Scope 3 emissions, or only Scopes 1 and 2? (Scope 3 avoidance is a major red flag in many sectors.)
- If Scope 3 is reported, does it include downstream product use emissions — not just upstream supply chain?
- Is the supply chain labour standard claim (e.g., 'no child labour in our supply chain') backed by audit data, or is it a policy statement with no verification?
- Does the company's sustainable sourcing claim apply to >80% of procurement, or is it limited to a showcase programme covering <5%?
- Has the company's supply chain sustainability performance improved year-over-year, or has it stagnated while the marketing has intensified?
Red-flag patterns
- Vague claims without data: 'We are committed to the environment' — no metric, no timeline, no baseline
- Relative improvement framing: '40% reduction in carbon intensity' — while absolute emissions grew due to business expansion
- Scope 3 avoidance: Claiming leadership in emissions reduction while excluding the 80%+ of the footprint in the value chain
- Offset dependency for net-zero: A net-zero claim achieved via offsets rather than real emission cuts, especially for low-quality offsets
- Misleading renewables claims: '100% renewable' covering only headquarter electricity, not manufacturing or logistics
- Headline-to-data mismatch: Press releases claiming ambitious goals, but annual reports showing stalled progress
- Baseline gaming: Resetting the emissions baseline after an acquisition to make subsequent reductions look larger
- Certification theatre: Displaying sustainability certifications prominently for products covering <1% of revenue
Real-world examples
Case: Fossil fuel company claims carbon neutral product
A major oil and gas company labelled a natural gas product as 'carbon neutral' based on offset credits. Investigation found the offsets were purchased from a poorly verified reforestation project with high permanence risk. The actual product emissions were unabated. Regulatory action followed in multiple jurisdictions.
Case: Fashion brand's '100% sustainable cotton' claim
A fast fashion brand claimed 100% sustainable cotton across its clothing range. Audit found that 'sustainable' was self-defined and included cotton from suppliers certified only to the lowest tier of a third-party scheme. Only 8% of cotton met the higher tier the brand implied.
How OpenESG flags greenwashing
Our AI intelligence engine cross-references company self-disclosures with news monitoring, regulatory filings, NGO reports, and ESG API data. We classify claims as Genuine, Questionable, or Greenwashing based on evidence strength and apply this to the greenwashing risk score visible on every company detail page.