Before publishing an environmental claim, ask one question: could a customer or investor reach a broader conclusion than the evidence actually supports? If the answer is yes, the claim needs narrowing, qualification or removal. This test catches a common problem that a carbon footprint spreadsheet or a sustainability badge alone cannot solve: a technically accurate statement can still create a misleading overall impression.

A New Zealand retailer describing packaging as recyclable faces a different evidence question from a fund manager selling an ESG-labelled investment. Both need to identify what their claim covers, retain the supporting records and disclose limitations where customers will see them.

Close-up of recycled-paper packaging with an environmental label.

What counts as greenwashing?

Greenwashing occurs when environmental messaging creates an inaccurate or misleading impression of a product, investment or organisation's environmental performance. It may involve an unsubstantiated “eco-friendly” label, selective disclosure of favourable metrics, an exaggerated comparison or a distant net-zero commitment without a credible route to delivery. Misleading imagery, unsupported certification symbols and claims that ignore important supply-chain impacts can be just as problematic as explicit false statements.

Not every incomplete disclosure is greenwashing. Businesses sometimes lack reliable information, especially about complex supply chains and Scope 3 greenhouse gas emissions. The distinction is how uncertainty is communicated. A qualified claim that identifies what has been measured is more defensible than an absolute promise presented as settled fact.

Greenwishing describes environmental ambitions without a credible delivery plan. Greenhushing is the opposite problem: organisations hold back genuine progress because they fear criticism. Neither calls for a bigger slogan. Publish measured results, acknowledge gaps and give the next reporting date when it is known.

Used glass bottles gathered for recycling.

The New Zealand rules businesses need to understand

Consumer claims: Fair Trading Act and Commerce Commission

The Fair Trading Act 1986 prohibits misleading or deceptive conduct and includes rules against unsubstantiated representations. The Commerce Commission advises businesses to make environmental claims truthful, accurate, specific, scientifically sound and substantiated. “Recyclable”, “biodegradable”, “natural”, “sustainably sourced” and “carbon neutral” each require evidence appropriate to what an ordinary New Zealand consumer would understand.

Evidence should exist before the claim goes live. A footnote is not a reliable fix for a headline that conveys a materially different impression. Nor does adding a qualifying sentence to a remote website necessarily correct an unqualified assertion on packaging or a social advertisement.

The Advertising Standards Authority (ASA) also requires environmental advertising to be truthful and substantiated. Its guidance considers the overall advertisement, product life cycle, consumer conditions and the meaning of environmental certification. An updated Advertising Standards Code has been announced, with application to new advertising from 1 February 2027 and all advertising within ASA jurisdiction from 1 April 2027; those future effective dates should not be confused with the code operating in October 2026.

Investment products: FMA and financial-market disclosure

For sustainable funds and other ESG-labelled financial products, the Financial Markets Authority (FMA) applies the fair-dealing and disclosure provisions of the Financial Markets Conduct Act 2013 . Its May 2026 sustainability-related disclosure guidance identifies four principles: clear claims, substantiation, consistent messaging and effective management of third parties.

A fund described as “sustainable” should explain what its investment strategy actually does: does it exclude certain industries, select comparatively strong ESG performers, seek measurable impact or simply integrate environmental risk into investment decisions? Those approaches are not interchangeable. Investors need to understand portfolio exceptions, screening thresholds and whether external ESG ratings or data providers are relied upon. A product disclosure statement (PDS), website, adviser script and promotional material should not tell different stories about the same investment.

Climate reporting: XRB standards and assurance

The External Reporting Board (XRB) develops Aotearoa New Zealand Climate Standards, including NZ CS 1 on climate-related disclosures, NZ CS 2 on adoption provisions and NZ CS 3 on general requirements. These standards concern applicable climate reporting entities , not every business that publishes an environmental advertisement. Disclosures cover governance, strategy, risk management, and metrics and targets, drawing on the structure associated with the Task Force on Climate-related Financial Disclosures (TCFD) .

Reporting obligations, adoption provisions and assurance requirements depend on entity status and reporting period. In November 2025, XRB extended specified NZ CS 2 adoption provisions, including those relating to Scope 3 emissions and assurance. In October 2026, XRB reported approval of further NZ CS 1 amendments concerning exclusions from Scope 3 emissions disclosure, with mandatory application planned for 1 January 2027. Before finalising a statutory climate statement, check the current XRB standards , relevant legislation and reporting-period rules rather than assuming a single timetable applies universally.

Seven warning signs that an ESG claim needs review

Warning sign Why it creates risk Better evidence or wording
“100% sustainable” An absolute statement implies broad proof across relevant impacts. Name the certified material, exact share, sourcing method and exceptions.
“Carbon neutral” Operational emissions, value-chain emissions and offsets may be conflated. Specify boundary, reporting year, gross emissions, reductions and offset type.
Green leaves or unofficial eco-seals Design can imply independent approval that does not exist. Identify the certifier, standard, validity period and certified scope.
“Recyclable” Technical recyclability may not reflect collection or processing available locally. Identify the component and relevant New Zealand disposal conditions.
Single favourable metric Cherry-picking can hide material trade-offs across the product life cycle. Report the boundary, baseline and significant excluded impacts.
“Net zero by 2050” A future target may lack an actionable transition plan. Publish interim milestones, funding assumptions and measured progress.
“ESG-approved fund” A label may imply guarantees about every holding or outcome. Explain screening rules, methodology, holdings and material exclusions.

How to verify a claim before publication

1. Write the exact promise and its likely interpretation

Record the wording, image, audience, channel and what a reasonable reader may infer. “Made with recycled material” may imply the whole product is recycled unless the packaging says otherwise. A simple claim register should capture each statement across websites, labels, tenders, investor presentations and paid advertising.

2. Define what the claim includes and excludes

For each claim identify the product, entity or facility; geography; time period; life-cycle stage; and denominator. Is the claim about packaging rather than contents? Direct operations rather than the full value chain? A particular factory rather than a multinational group? Scope 1 generally covers direct emissions, Scope 2 purchased-energy emissions and Scope 3 other value-chain emissions. Omitting a material category without explanation can transform a narrow truth into a broad misimpression.

3. Match evidence to the strength of the wording

Use test results, purchasing records, supplier traceability, credible emissions inventories and relevant scientific methods. The GHG Protocol can support greenhouse gas accounting; ISO 14064 provides standards relevant to GHG quantification and verification. A life cycle assessment (LCA) may help evaluate impacts across stages, while a properly scoped Environmental Product Declaration (EPD) can communicate defined life-cycle information. None of these tools automatically proves that a product is “good for the planet”.

4. Check certification and third-party assurance

Independent assurance can improve confidence only within its stated scope. Check the certification body, standard, accredited status where relevant, covered entities, measurement period, exclusions and expiry. A Toitū Envirocare certification, for example, should be described using the specific programme and certified boundary rather than converted into an unrestricted environmental endorsement. Even when a supplier, auditor or ESG ratings provider supplies the data, the business publishing the claim remains responsible for its accuracy and fair presentation.

5. Test material limitations against the headline

Ask a colleague unfamiliar with the project what the claim means. If their interpretation is broader than the evidence, revise the headline rather than hiding qualifications in technical documentation. Confirm that the same limitations are visible in retail displays, social posts, annual reports and the PDS where relevant.

6. Approve, monitor and correct

Assign a named claim owner, evidence location, sign-off date and revalidation trigger. Triggers can include changed suppliers, new product composition, updated science, a revised emissions baseline or expired certification. Maintain an audit trail and a correction process for claims that cease to be supportable. Board oversight and staff training help ensure sustainability, procurement, legal and marketing teams use a shared set of facts.

New Zealand cases show why claim boundaries matter

Kmart NZ: sourcing claims vs. product content

In August 2025, the Commerce Commission reported a warning to Kmart NZ concerning its “100% sustainably sourced cotton” advertising. The Commission said the claim lacked adequate substantiation because the Better Cotton mass-balance system permits cotton from participating farmers to be mixed with conventional cotton in the supply chain. The company removed the claim. This was a regulatory warning about a potential breach , not a court finding of liability.

The broader lesson extends to suppliers in fashion, food and agriculture: a chain-of-custody or credit-allocation system must not be described as physical content traceability unless that is what it genuinely establishes. A brand using Better Cotton, organic or recycled sourcing programmes must explain their actual rules and avoid turning qualified participation into an absolute product claim.

Z Energy: operational progress and emissions

Consumer NZ, the Environmental Law Initiative and Lawyers for Climate Action NZ challenged advertising by Z Energy, including its messaging about moving away from petrol. The proceedings ended in a November 2025 settlement with a public statement and apology for confusion caused by aspects of the campaign. Z Energy did not admit liability and disputed that its conduct amounted to greenwashing; there was no court determination establishing the alleged breach.

A central point of contention was the boundary of emissions-reduction messaging: operational reductions do not necessarily account for emissions generated when customers use sold fuel. Any transition plan should distinguish reductions within operations from the footprint of products sold, and explain the continuing role of fossil fuels, low-carbon alternatives and carbon offsets.

Other claims require the same discipline

Environmental messaging from airlines, airports, agriculture and dairy can face similar scrutiny. For organisations such as Air New Zealand , Christchurch Airport and Fonterra , the relevant questions are not whether sustainability activity exists, but which operations and supply-chain impacts a particular public claim covers. An Anchor butter product claim, for example, would need evidence specific to the attribute advertised rather than relying on the parent company's general sustainability narrative. Greenpeace Aotearoa and consumer advocates may challenge public claims, but criticisms and allegations should be distinguished from findings by regulators or courts.

Greenwashing, genuine progress and misleading silence

A business need not achieve zero environmental impact to communicate a genuine improvement. It does need to avoid presenting a relative improvement as an absolute achievement. “Packaging contains 50% recycled plastic by weight, excluding the cap” is testable; “environmentally harmless packaging” is far more demanding. Likewise, an emissions target should identify the baseline year, gross reductions, offset reliance, interim checkpoints and material dependencies.

Excessive fear of scrutiny can encourage greenhushing, leaving customers and investors unable to distinguish credible improvement from unsupported promotion. A more useful middle course is to publish verified progress with transparent limitations. That can protect consumer trust and investor confidence without suggesting that ESG performance is complete, permanent or guaranteed.

A practical ESG claims control for New Zealand organisations

Control Record to keep When to reopen
Claims register Exact copy, audience, channel and owner Every campaign or content change
Evidence pack Source data, methodology, supplier records and testing New evidence, product or supplier
Emissions boundary Baseline, Scope 1-3 inclusion, exclusions and offsets Annual inventory or boundary change
Assurance record Certifier, standard, scope and expiration Certification renewal or scope change
Disclosure alignment Website, ads, PDS and climate statements where applicable Revised strategy or material disclosure
Escalation process Legal/compliance review, corrective decision and publication log Complaint, discrepancy or new guidance

Track more than the number of claims approved. Useful indicators include the share with evidence available before publication, overdue certification reviews, unresolved supplier data gaps, time to correct an inaccurate statement and material inconsistencies identified across channels. An organisation can reduce greenwashing risk without suppressing legitimate environmental communication.

Frequently asked questions

Is greenwashing illegal in New Zealand?

There is no need for a standalone “greenwashing offence” for a claim to create legal exposure. Misleading or unsubstantiated environmental representations may engage the Fair Trading Act 1986. Claims by financial product issuers can also raise issues under the Financial Markets Conduct Act 2013. The applicable legal position depends on who makes the claim, its context and the evidence.

Does carbon-neutral certification prove sustainability?

No. It may support a particular carbon accounting or certification claim within defined boundaries. It does not establish that all environmental impacts are low, that gross emissions have fallen or that every product is sustainable. Check the accounting period, emissions coverage, treatment of offsets and assurance scope.

Can small firms make claims without an ESG report?

Yes, provided claims are sufficiently specific and supported by reasonable evidence. A small retailer can accurately state a verified recycled-content percentage or measured energy saving without presenting itself as subject to the same climate reporting requirements as a regulated climate reporting entity. The breadth of the promise should match the strength of the proof.

What should consumers and investors ask for?

Ask what exactly improved, compared with which baseline, over what period and verified by whom. For sustainable investments, check the investment strategy, exclusions, significant holdings, methodology and published disclosures. For products, inspect the label, traceability or certification conditions, and whether a claimed benefit applies in real New Zealand use and disposal conditions. Suspected misleading consumer claims can be reported to the Commerce Commission; advertising concerns may also be directed to the ASA.

The decisive safeguard is claim-to-evidence traceability: every significant environmental promise should map to a defined scope, reliable proof, visible qualifications and an owner responsible for keeping it current. When those elements cannot be established, narrowing the claim is more defensible than amplifying the marketing.