Amazon sued over alleged greenwashing of seafood sustainability labels

Seattle lawsuit challenges Amazon’s seafood sustainability labels

Amazon faces a proposed class action in Seattle federal court over environmental marketing claims on seafood products sold through its marketplace. Consumers allege the company used sustainability labels such as “dolphin safe,” “responsibly sourced,” “sustainable,” “wild caught,” and “MSC Certified Sustainable Seafood” without adequate evidence to support those claims. The lawsuit argues these labels misled shoppers about the environmental impact of dozens of tuna, salmon, and other seafood products.

The complaint targets products sold under several brands. These include Bumble Bee, Chicken of the Sea, StarKist, and Amazon’s own 365 by Whole Foods Market line. According to Reuters, the plaintiffs claim Amazon’s marketing suggested the seafood caused minimal harm to oceans and the environment. However, they argue the company did not provide sufficient proof to back up those statements.

This case arrives amid growing scrutiny of environmental claims in retail. It also follows another greenwashing lawsuit filed against Amazon earlier in 2025 over its Amazon Basics paper products. That separate complaint, lodged in the Western District of Washington on March 14, accused the company of using environmental logos and language that overstated sustainability credentials.

Claims focus on traceability and supply chain gaps

The seafood lawsuit centres on allegations that Amazon’s sustainability messaging lacks proper disclosure. Plaintiffs argue that many fishing vessels are not publicly tracked. Furthermore, they claim some vessels disable transponders to hide their locations. This makes it difficult to verify whether seafood comes from responsible sources.

The complaint also asserts that at least one-fifth of imported wild-caught seafood is not responsibly or sustainably sourced. Consequently, the plaintiffs say broad labels such as “sustainable” or “responsibly sourced” can mislead consumers when applied to products from supply chains with limited transparency. The core allegation, as quoted by Reuters, is that “Amazon nevertheless markets the greenwashed seafood products using broad sustainability messaging without providing disclosures necessary to prevent consumer deception.”

Amazon has not publicly responded to the lawsuit, according to Reuters reporting. The complaint does not allege that every product labelled as sustainable was improperly sourced. Instead, it challenges whether the company provided enough detail to justify the claims made on product listings. For businesses watching this case, the issue is not just the labels themselves but whether the evidence behind them is clear and verifiable.

Amazon’s published sourcing standards form key context

Amazon maintains a published sourcing policy for its Private Brands seafood sold in North America and Europe. That policy states such products should be sourced to specific sustainability standards. For wild-caught seafood, this includes Marine Stewardship Council certification or Monterey Bay Aquarium Seafood Watch ratings. For farmed seafood, the company references ASC, organic, or BAP certification.

The existence of this policy is important. It sets out the standards Amazon says it follows. The lawsuit, therefore, challenges whether the company’s product-level labeling and marketing accurately reflected those standards in practice. In other words, plaintiffs are asking whether the sustainability claims made to consumers matched the sourcing commitments Amazon published.

This distinction matters for UK businesses watching the case. Many companies publish sustainability policies or commitments. However, the gap between published intent and customer-facing claims is where legal risk can emerge. If internal standards exist but front-line marketing does not reflect them accurately, that discrepancy can become the basis for a legal challenge.

Pattern emerges across environmental marketing claims

The seafood case is not an isolated incident for Amazon. Earlier in 2025, the company was sued over similar allegations related to Amazon Basics paper products. That lawsuit, filed on March 14 in the Western District of Washington, accused Amazon of using environmental badges and forestry claims that misled consumers about sustainability.

Both cases share a common thread. They focus on whether broad environmental labels provide enough information to avoid misleading consumers. The paper products case and the seafood case both allege that Amazon used sustainability language without sufficient disclosure or substantiation. This suggests a broader legal strategy targeting how retailers communicate environmental credentials across product categories.

For businesses, this trend is significant. Environmental claims are increasingly subject to scrutiny, not just from regulators but also from consumers willing to bring legal action. The bar for what counts as adequate substantiation appears to be rising. Companies that rely on general sustainability labels without detailed supporting evidence may face similar challenges.

What the lawsuit alleges about Amazon’s seafood marketing

• Amazon used sustainability labels including “dolphin safe,” “responsibly sourced,” “sustainable,” “wild caught,” and “MSC Certified Sustainable Seafood” on dozens of seafood products sold through its marketplace.
• The complaint alleges these claims were not adequately substantiated, particularly given that many fishing vessels are not publicly tracked and some disable transponders to obscure their locations.
• Plaintiffs claim at least one-fifth of imported wild-caught seafood is not responsibly or sustainably sourced, making broad sustainability claims potentially misleading.
• Products targeted include those sold under Bumble Bee, Chicken of the Sea, StarKist, and Amazon’s 365 by Whole Foods Market brand.
• Amazon’s own published sourcing policy requires Private Brands seafood to meet specific standards such as Marine Stewardship Council certification, yet the lawsuit questions whether product-level marketing matched those commitments in practice.
• The case follows a separate greenwashing lawsuit filed in March 2025 over Amazon Basics paper products, suggesting a pattern of environmental marketing challenges.

Implications for retailers and supply chain accountability

This lawsuit tests how far retailers can go when using broad sustainability labels on products sourced from complex global supply chains. Seafood presents particular challenges. Traceability varies widely depending on fishing methods, vessel tracking, and import practices. If the plaintiffs succeed, Amazon and similar retailers may need to provide more specific disclosures behind claims such as “sustainable” or “responsibly sourced.”

The case could set a precedent for what level of detail consumers can expect when they see environmental labels. Currently, many retailers use general sustainability claims without explaining what they mean or how they were verified. If courts rule that such claims require more substantiation, companies may need to rethink how they present environmental credentials. This could involve linking to third-party certifications, publishing supply chain data, or adding disclaimers where verification is incomplete.

For UK businesses, the principles at stake are relevant even though this is a US case. Consumer protection rules in the UK also prohibit misleading environmental claims. The Competition and Markets Authority has issued guidance on green claims, emphasising that statements must be accurate, clear, and substantiated. While UK enforcement mechanisms differ from US class actions, the underlying risk is similar. Businesses that make broad sustainability claims without adequate evidence may face regulatory action or reputational damage.

The seafood sector illustrates why this matters. Supply chains often involve multiple countries, vessels, and intermediaries. Traceability systems vary. Some certifications are rigorous, while others are less so. When a retailer applies a label such as “sustainable” to a product, consumers assume that label is meaningful and verified. If it turns out the claim was not properly substantiated, trust erodes quickly.

Broader context of environmental marketing enforcement

Greenwashing litigation has increased in recent years. Companies across sectors face legal challenges over environmental claims that consumers or advocacy groups say are misleading. In the US, class action lawsuits provide a mechanism for consumers to seek damages and force changes in corporate behaviour. In the UK, enforcement tends to come from regulators such as the CMA or the Advertising Standards Authority, though consumer rights legislation also allows for civil claims in some circumstances.

The Amazon cases highlight a shift in how environmental claims are scrutinised. Previously, broad statements about sustainability were common and often went unchallenged. Now, plaintiffs and regulators are asking companies to prove what they say. This applies not just to product labels but also to corporate-level commitments and marketing campaigns. Companies that have published sustainability goals or sourcing policies are being held to those standards. Discrepancies between policy and practice are becoming litigation targets.

For businesses, this means environmental claims need to be defensible. That requires clear evidence trails. If a product is labelled as sustainable, the company should be able to explain what that means and provide supporting documentation. If a supply chain involves third-party certifications, the company should understand what those certifications cover and where gaps exist. General statements without backup are increasingly risky.

What businesses should consider in response

Companies that make environmental claims on products or in marketing should review how those claims are substantiated. This includes checking whether labels align with sourcing policies, whether third-party certifications are up to date, and whether consumers are given enough information to understand what claims mean. Where supply chains are complex, transparency becomes important. If traceability is limited, that should be acknowledged rather than glossed over with broad sustainability language.

Businesses should also consider whether their internal standards match customer-facing claims. If a company publishes a sourcing policy that commits to specific certifications, product listings should reflect those commitments accurately. If standards vary by product or supplier, that variation should be clear. Inconsistencies between policy and practice create legal exposure.

Training for marketing and product teams is another area to consider. Staff responsible for product listings, labels, and promotional content need to understand the legal risks of environmental claims. They should know what level of evidence is required to support statements such as “sustainable,” “responsibly sourced,” or “eco-friendly.” Without that awareness, well-intentioned marketing can create compliance problems.

Finally, businesses should monitor legal developments in this area. The Amazon seafood case is ongoing, and its outcome could influence how retailers approach sustainability claims. Other cases are progressing in the US and elsewhere. Regulatory guidance is also evolving, particularly in the UK where the CMA has made green claims a priority. Staying informed helps businesses adjust their approach before issues escalate.

Additional resources for understanding environmental claims

The UK Competition and Markets Authority has published detailed guidance on making environmental claims. Its Green Claims Code sets out principles that apply across sectors. Businesses should ensure environmental claims are truthful, clear, and not misleading. The code also emphasises that claims must be substantiated with evidence.

The Marine Stewardship Council provides information on seafood certification standards. Its guidance on sustainable fishing explains what MSC certification involves and how traceability works. This is useful context for businesses sourcing or selling seafood products.

The Advertising Standards Authority in the UK enforces rules on misleading advertising, including environmental claims. Its rulings on environmental issues provide examples of what is considered acceptable and what crosses the line. Businesses can use these rulings to benchmark their own marketing.

For businesses involved in public sector supply chains, understanding how environmental criteria are assessed in procurement is important. Government guidance on carbon reduction plans in procurement explains what is expected from suppliers. This connects to broader questions about how sustainability claims are verified and communicated.