Trend watch: Consumer behavior & green marketing in 2026 — signals, winners, and red flags

Green claims on consumer products increased 74% between 2020 and 2025, yet consumer trust in those claims dropped to 37%, according to the European Commission's 2025 consumer survey on environmental claims. The gap between the volume of green marketing and the credibility of that marketing defines the central tension in consumer behavior and sustainability heading into 2026. This trend watch identifies the signals reshaping how consumers evaluate sustainability, which companies and strategies are winning, and the red flags that could undermine the entire category.

Why It Matters

Consumer spending accounts for roughly 60% of GDP in developed economies and drives the demand signal that shapes production, supply chains, and resource extraction. When consumers shift purchasing patterns toward lower-carbon, lower-waste products, the effects cascade upstream through every tier of manufacturing and agriculture.

The problem is that two decades of vague, unverified green marketing have created deep skepticism. A 2025 Kantar sustainability survey found that 65% of UK consumers say they want to buy sustainably, but only 28% report actually doing so consistently. This intention-action gap is not primarily about price. Research from the Behavioural Insights Team shows that confusion about which claims are credible, difficulty comparing products, and decision fatigue all suppress conversion from intention to purchase.

Three forces are converging to change this dynamic in 2026. First, the EU Green Claims Directive, expected to take effect in late 2026 or early 2027, will require companies to substantiate environmental claims with verified data and standardized methodologies before they can be used in marketing. This will eliminate the most egregious greenwashing and create a floor of credibility. Second, digital product passports (DPPs) are moving from pilot to mandate in the EU, giving consumers access to product-level environmental data via QR codes and standardized formats. Third, AI-powered recommendation engines and comparison tools are making it easier for consumers to evaluate sustainability attributes alongside price, quality, and availability at the point of purchase.

Key Concepts

Green claims substantiation refers to the regulatory requirement to back up environmental marketing claims with verifiable evidence. Under the EU Green Claims Directive, companies will need to use recognized methodologies, provide supporting data, and submit claims for pre-approval or third-party verification before publishing them.

The intention-action gap describes the persistent difference between what consumers say they want (sustainable products) and what they actually buy. Closing this gap requires interventions at the point of decision: clearer labeling, default options, price parity, and trusted comparison tools.

Digital product passports (DPPs) are standardized digital records containing environmental, social, and circularity data for individual products. The EU is mandating DPPs for batteries (2027), textiles (2027-2028), and other product categories, creating a data infrastructure that enables both regulatory enforcement and consumer transparency.

Sustainability-linked loyalty programs integrate environmental impact metrics into customer rewards systems. Rather than rewarding volume of purchase alone, these programs incentivize behaviors like product returns for recycling, repair service usage, and selection of lower-impact product options.

What's Working

Patagonia's Worn Wear and repair-first model continues to outperform expectations commercially. The Worn Wear resale platform processed over 130,000 garments in 2025, generating $40 million in revenue while reducing demand for new production. Patagonia reports that customers who engage with Worn Wear have 34% higher lifetime value than those who purchase only new items. The model works because it transforms sustainability from a purchase constraint into an ongoing brand relationship, embedding environmental behavior into the customer journey rather than isolating it as a one-time buying decision.

Unilever's reformulated brand sustainability strategy represents a significant course correction. After scaling back its previous broad sustainability messaging, Unilever shifted to product-specific, quantified environmental claims on brands like Persil, Dove, and Hellmann's. The company reports that brands with specific, verified sustainability claims grew 2.3x faster than those with generic green messaging in 2025. This approach, linking concrete data to individual products rather than making sweeping corporate commitments, aligns with the evidence on what actually drives consumer behavior change.

Too Good To Go's surprise bags model reached 100 million users globally by late 2025, preventing 350 million meals from being wasted. The platform succeeds because it aligns environmental impact with direct consumer value: users get food at one-third of retail price while reducing waste. This dual-incentive structure, environmental benefit plus financial savings, consistently outperforms messaging that relies on environmental motivation alone. The model has expanded from restaurants to grocery chains including Carrefour, Tesco, and ALDI, demonstrating scalability across retail formats.

What's Not Working

Carbon-neutral product claims without transparent methodology are collapsing under regulatory and media scrutiny. The Dutch Advertising Standards Authority ruled in 2024 that Shell's carbon-neutral driving program was misleading, and similar rulings have followed across Europe. Companies that built marketing strategies around carbon neutrality claims, particularly those relying heavily on low-quality offsets, face both regulatory enforcement and consumer backlash. The term "carbon neutral" is becoming toxic in marketing, yet many brands have not developed alternative frameworks for communicating climate performance.

Premium-only sustainability positioning continues to limit market impact. When sustainable options cost 30-50% more than conventional alternatives, adoption remains confined to high-income demographics. A 2025 Deloitte survey found that price sensitivity is the primary barrier to sustainable purchasing for 58% of UK consumers, rising to 73% among households earning below the median income. Brands that position sustainability exclusively as a premium feature are inadvertently making environmental responsibility a luxury good, which limits total emissions reduction and reinforces inequality in access.

Eco-label proliferation without harmonization is worsening consumer confusion rather than resolving it. There are now over 450 active eco-labels in the EU alone, covering overlapping product categories with different methodologies, boundary conditions, and verification standards. Consumers cannot meaningfully compare a product carrying an EU Ecolabel, a B Corp certification, a Cradle to Cradle designation, and a proprietary brand sustainability badge. The result is that labels become noise rather than signal, and consumers default to price and brand familiarity.

Generic "sustainable" brand messaging without specificity has become counterproductive. Nielsen IQ data from 2025 shows that consumer response to the word "sustainable" in product marketing has declined 22% since 2022 in click-through and conversion rates. The term has been so broadly applied that it no longer carries informational content. Brands using unqualified sustainability language are now performing worse than those making no environmental claims at all, because consumers associate vagueness with greenwashing.

Key Players

Established Leaders

• Unilever: Pioneered brand-level sustainability integration across its portfolio, now shifting to product-specific verified claims with measurable consumer impact.
• Patagonia: Sets the standard for circular business models in consumer goods, with repair, resale, and material traceability embedded in the brand experience.
• IKEA: Operates one of the largest furniture buy-back and resale programs globally, with its second-hand marketplace reaching 30+ countries and processing millions of items annually.
• Tesco: Leads UK grocery retail in sustainability labeling, with carbon footprint labels on own-brand products and integration with Too Good To Go for waste reduction.

Emerging Startups

• Too Good To Go: Food waste prevention platform connecting consumers with surplus food from restaurants and retailers at discounted prices, operating in 17 countries.
• Giki: Consumer sustainability app providing product-level environmental ratings and personalized recommendations, with over 300,000 products scored in the UK market.
• Provenance: Transparency technology platform enabling brands to make verifiable sustainability claims backed by blockchain-anchored supply chain data.
• Yuka: Product scanning app with over 55 million users that rates food and cosmetics on health and environmental criteria, influencing reformulation decisions by major brands.

Key Investors and Funders

• WRAP (Waste and Resources Action Programme): UK-based NGO funding consumer behavior research and the Courtauld Commitment, driving industry-wide action on food waste and packaging.
• European Commission: Funding the Green Claims Directive implementation and digital product passport infrastructure through Horizon Europe and Digital Europe programs.
• Closed Loop Partners: Venture capital and project finance investor backing circular economy startups that change consumer interaction with products and packaging.

Signals to Watch in 2026

Signal	Current State	Direction	Why It Matters
EU Green Claims Directive timeline	Final text adopted, transposition pending	Implementation 2026-2027	Sets the legal floor for credible green marketing across the single market
Digital product passport adoption	Battery DPPs mandatory 2027, textiles in development	Accelerating across categories	Creates product-level data infrastructure for informed consumer choice
Carbon-neutral claim enforcement	Multiple national rulings against misleading claims	Increasing regulatory action	Forces brands to abandon unsubstantiated claims or invest in verification
Intention-action gap metrics	65% intend, 28% act consistently (UK)	Slowly narrowing	Measures whether transparency and labeling reforms actually change behavior
Eco-label consolidation	450+ labels in EU	Slow movement toward harmonization	Determines whether labels become useful decision tools or remain noise
AI-powered sustainability comparison tools	Early adoption phase	Growing rapidly	Could fundamentally change how consumers evaluate environmental attributes

Red Flags

Green Claims Directive implementation delays or loopholes. If transposition into national law is delayed beyond 2027 or if significant product categories receive exemptions, the current wave of unsubstantiated green marketing will continue, further eroding consumer trust. The directive's credibility depends on consistent enforcement, and any perception of regulatory weakness will embolden continued greenwashing.

Consumer fatigue leading to disengagement rather than discernment. There is a risk that the combination of greenwashing scandals, label confusion, and economic pressure causes consumers to stop trying to evaluate sustainability claims entirely. If consumer attention to environmental attributes declines, the market signal for sustainable products weakens, reducing the business case for companies investing in genuine improvements.

Cost-of-living pressures overriding sustainability preferences. In the UK and across Europe, persistent inflation and housing cost increases are squeezing household budgets. If sustainable products remain priced at significant premiums, the intention-action gap will widen rather than narrow. The 2025 ONS data shows UK households spending an increasing share of income on essentials, leaving less discretionary budget for sustainability-motivated purchasing.

Platform algorithm bias against sustainable products. E-commerce platforms optimize for conversion rate and revenue per click, which can systematically disadvantage sustainable products that carry higher prices or require more complex decision-making. If Amazon, Tesco Online, and other major platforms do not integrate sustainability into their recommendation algorithms, the digital shopping environment will actively work against greener consumer choices.

Action Checklist

• Audit all environmental marketing claims against EU Green Claims Directive requirements before enforcement begins
• Replace generic sustainability messaging with product-specific, quantified environmental data
• Develop or integrate digital product passport infrastructure for product categories approaching EU mandate deadlines
• Design pricing strategies that bring sustainable options within 10-15% of conventional alternatives to close the intention-action gap
• Partner with trusted third-party verification platforms like Provenance or EcoVadis to substantiate claims
• Implement sustainability-linked loyalty programs that reward ongoing environmental behavior, not just single purchases
• Test AI-powered comparison tools and sustainability filters for e-commerce channels

FAQ

How will the EU Green Claims Directive change green marketing? The directive will require companies to substantiate environmental claims using recognized scientific methodologies and verified data before those claims can be used in advertising, packaging, or product communications. Generic terms like "eco-friendly" or "green" will need to be backed by specific, measurable evidence. Companies will need to identify which environmental impacts their claims relate to, demonstrate that improvements are significant rather than trivial, and disclose whether claimed benefits create trade-offs in other environmental areas. Non-compliant claims will face enforcement action and financial penalties.

What is the most effective way to communicate sustainability to consumers? Research consistently shows that specific, quantified claims outperform generic sustainability messaging. Stating that a product uses 40% less water than the category average is more effective than labeling it "sustainable." Comparative framing, where the consumer can see the relative improvement against a benchmark, drives the highest conversion rates. Visual formats like color-coded ratings (similar to EU energy labels) perform better than text-heavy certifications. Crucially, linking environmental benefits to personal value, whether through cost savings, health benefits, or product quality, closes the intention-action gap more effectively than environmental messaging alone.

Are consumers actually willing to pay more for sustainable products? Willingness to pay varies significantly by product category, income level, and how sustainability is framed. Meta-analyses of consumer studies show a median willingness-to-pay premium of 10-15% for products with credible sustainability credentials, but this drops sharply above 20% premiums. In categories where sustainability aligns with other valued attributes (organic food with perceived health benefits, energy-efficient appliances with lower operating costs), premiums are more readily accepted. The most successful strategies reduce or eliminate the premium rather than relying on willingness to pay more.

How do digital product passports affect consumer behavior? Early pilots suggest that DPPs increase consumer engagement with product environmental data by 3-5x compared to static labels. When consumers can scan a QR code and see a product's carbon footprint, water usage, recyclability score, and supply chain origin, they make measurably different choices. A 2025 pilot by GS1 and several EU retailers found that products with accessible DPP data saw 12% higher conversion rates in sustainability-conscious consumer segments. However, the impact depends on data presentation: raw numbers are less effective than comparative ratings and clear visual hierarchies.

Sources

1. European Commission. "Consumer Survey on Environmental Claims: 2025 Results." EC, 2025.
2. Kantar. "Sustainability Sector Index 2025: UK Consumer Attitudes and Behaviour." Kantar, 2025.
3. Deloitte. "Sustainable Consumer 2025: UK Market Report." Deloitte, 2025.
4. Behavioural Insights Team. "Green Nudges: Closing the Intention-Action Gap in Consumer Markets." BIT, 2025.
5. Patagonia. "Annual Benefit Corporation Report 2025." Patagonia, 2025.
6. Too Good To Go. "Impact Report 2025: 100 Million Users Milestone." Too Good To Go, 2025.
7. European Commission. "Green Claims Directive: Final Text and Implementation Guidance." EC, 2025.
8. GS1. "Digital Product Passport Retail Pilot: Consumer Engagement Results." GS1, 2025.