Trend analysis: Behavior change & climate communications — where the value pools are (and who captures them)

The global market for climate-related behavior change interventions reached $4.2 billion in 2025, up from $1.8 billion in 2021, driven by regulatory nudge mandates, corporate sustainability engagement programs, and a surge in digital platforms that translate climate science into actionable consumer guidance. Yet the value pools within this space are unevenly distributed: companies that own the data layer connecting behavior to measurable emissions outcomes are capturing disproportionate returns, while traditional awareness campaigns generate diminishing impact.

Why It Matters

Behavior change and climate communications sit at the intersection of policy compliance, corporate reputation, and consumer demand. The European Green Deal's consumer empowerment provisions, combined with the FTC's updated Green Guides in the United States and emerging anti-greenwashing regulations, have transformed climate messaging from a marketing function into a compliance requirement. For procurement teams, this shift means evaluating vendors not just on reach metrics but on verified behavior outcomes tied to emissions reductions.

The stakes are material. McKinsey estimates that household-level behavior changes could deliver 20-25% of the emissions reductions needed to reach net zero by 2050. The International Energy Agency calculates that behavioral interventions in energy use alone could avoid 2 GtCO2 annually by 2030. Companies that can credibly link their products, services, or communications to measurable behavior shifts hold a competitive advantage in both consumer markets and ESG-driven procurement.

Key Concepts

Behavioral nudge platforms use data analytics, personalization, and choice architecture to steer decisions toward lower-carbon options without restricting choice. These platforms generate value by reducing customer acquisition costs for sustainable products and services while generating granular consumption data.

Climate communications compliance refers to the growing body of regulation governing how organizations communicate environmental claims. The EU Green Claims Directive (effective 2026) requires substantiation of environmental claims with product-level lifecycle data, creating demand for verification infrastructure and compliant messaging tools.

Outcome-based engagement shifts the metric from awareness (impressions, reach) to verified behavior change (kWh reduced, trips shifted, purchases redirected). This model aligns incentives between communicators and funders and enables performance-based contracts.

Digital carbon coaching delivers personalized emissions feedback to individuals through apps, utility integrations, and employer benefit platforms. The segment has grown 280% since 2022, with monthly active users exceeding 45 million globally across leading platforms.

What's Working

Utility-integrated behavioral programs have demonstrated the strongest return on investment in this space. Opower (now part of Oracle Utilities) delivers Home Energy Reports to over 100 million households globally, generating average energy savings of 2-3% per household. The program's value proposition is straightforward: utilities spend $0.03-0.05 per kWh saved through behavioral programs versus $0.10-0.15 per kWh for traditional efficiency rebates. This cost advantage has driven adoption by over 100 utilities across 12 countries.

Employer-sponsored climate engagement platforms represent the fastest-growing segment. Companies like SAP, Unilever, and Salesforce have deployed platforms that gamify employee carbon reduction through commuting challenges, energy-saving competitions, and sustainable procurement choices. Capture rates for corporate wellness-style climate programs range from 25-40% of eligible employees, with measured behavior changes persisting 6-12 months post-intervention. AWorld, selected by the United Nations as the official app for the ActNow campaign, reported 1.2 million individual sustainable actions logged through its corporate partnerships in 2025.

AI-personalized climate messaging is outperforming generic campaigns by wide margins. Climate Outreach's research shows that values-aligned messaging increases engagement rates by 3-5x compared to one-size-fits-all content. Platforms using machine learning to segment audiences by psychological profiles, cultural context, and behavioral readiness are achieving 40-60% higher conversion rates on calls to action. This capability has attracted significant investment: personalized climate communication startups raised over $350 million in 2024-2025.

What's Not Working

Awareness-only campaigns continue to absorb significant budgets with minimal measurable impact. A 2025 Yale Program on Climate Change Communication study found that awareness of climate risks increased only 2 percentage points despite a 150% increase in campaign spending between 2021 and 2025. The gap between awareness and action remains wide: 78% of consumers express concern about climate change, but only 12% have made significant purchasing or lifestyle changes in response.

Carbon footprint calculators without follow-through infrastructure generate high initial engagement but suffer 85-90% abandonment rates within 30 days. Users who calculate their footprint but receive no personalized, actionable pathway to reduction report frustration and disengagement. The market has seen over 200 footprint calculator apps launch since 2020, with fewer than 15 maintaining significant active user bases.

Fear-based messaging has been shown repeatedly to trigger psychological disengagement rather than action, particularly in emerging markets where immediate economic concerns dominate decision-making. Research published in Nature Climate Change (2024) demonstrated that solution-oriented framing increased behavioral intent by 35% compared to threat-based framing, yet 60% of climate communications budgets still fund campaigns emphasizing worst-case scenarios.

Greenwashing-adjacent communications that overstate the impact of individual actions (such as claiming that personal recycling can "solve" the plastics crisis) are increasingly attracting regulatory scrutiny. The Netherlands Authority for Consumers and Markets issued 14 enforcement actions against misleading sustainability claims in consumer-facing communications during 2025, signaling a tightening compliance environment.

Key Players

Established Leaders

• Oracle Utilities (Opower): Operates the largest residential behavioral energy efficiency program globally, reaching 100+ million households across 100+ utilities. Generates verified energy savings data at scale.
• Rare (Center for Behavior & the Environment): Designs evidence-based behavior change campaigns for conservation and climate outcomes in 60+ countries. Pioneered the "Pride" methodology for community-level engagement.
• Climate Outreach: Leads research on values-based climate communication strategies. Published the most cited frameworks for cross-cultural climate messaging used by governments and NGOs.
• Deloitte: Built a sustainability behavior change practice advising Fortune 500 companies on employee engagement, consumer communication compliance, and ESG narrative strategy.

Emerging Startups

• AWorld: UN-backed sustainable actions platform with 1.2 million+ logged actions through corporate partnerships. Gamification engine drives 30%+ monthly retention rates.
• Joro: Consumer carbon tracking app linking credit card transactions to emissions estimates. Raised $10 million Series A in 2024 to expand employer channel distribution.
• Deedster: Nordic behavior change platform for municipalities and employers. Operates in 15 countries with measured behavior shifts averaging 12% reduction in personal carbon footprints.
• Capture: Mobile app tracking individual CO2 emissions through location data and transport mode detection. Partnership with Swiss Re explores linking behavior data to insurance products.

Key Investors & Funders

• IKEA Foundation: Committed $100 million to behavior change and climate communication programs in emerging markets through 2027.
• Bloomberg Philanthropies: Funds the Beyond Carbon campaign and climate communications infrastructure across US cities and states.
• European Climate Foundation: Largest European funder of climate communications, supporting media, advocacy, and public engagement programs in 15+ countries.

Where the Value Pools Concentrate

Value Pool	Market Size (2025)	Growth Rate	Margin Profile	Key Capture Mechanism
Utility behavioral programs	$1.4B	12% CAGR	35-45% gross	Regulated cost recovery, per-kWh savings
Corporate engagement platforms	$850M	28% CAGR	50-65% gross	SaaS subscriptions, ESG reporting integration
AI-personalized messaging tools	$620M	35% CAGR	55-70% gross	Platform licensing, audience data monetization
Compliance communications	$540M	22% CAGR	30-40% gross	Consulting fees, verification services
Digital carbon coaching (B2C)	$480M	40% CAGR	15-25% gross	Freemium/premium, affiliate partnerships
Research and evaluation	$310M	8% CAGR	20-30% gross	Grant funding, consulting retainers

The highest-margin value pools sit in SaaS-based corporate engagement and AI-personalized messaging, where recurring revenue models and data network effects create defensible positions. The largest pool by absolute size remains utility behavioral programs, but growth is constrained by regulatory approval cycles and utility procurement timelines.

Digital carbon coaching (B2C) shows the fastest growth but the lowest margins, reflecting high customer acquisition costs and monetization challenges inherent in consumer apps. Winners in this space will likely be those that pivot to B2B2C distribution through employers, insurers, or financial institutions.

Action Checklist

• Audit current climate communications for compliance with the EU Green Claims Directive and FTC Green Guides requirements
• Evaluate behavioral program vendors using outcome-based metrics (verified emissions reduced) rather than awareness metrics (impressions, reach)
• Pilot employer-sponsored climate engagement platforms with a minimum 90-day measurement window to assess behavior persistence
• Integrate behavior change data with existing ESG reporting infrastructure to capture value from Scope 3 employee and consumer engagement
• Assess AI-personalized messaging tools for alignment with data privacy regulations (GDPR, CCPA) before deployment
• Establish baseline measurements of target audience behavior before launching any intervention to enable credible impact claims

FAQ

Which behavior change approaches deliver the highest ROI for corporations? Utility-integrated behavioral programs deliver the most cost-effective emissions reductions at $0.03-0.05 per kWh saved. For corporations specifically, employer-sponsored engagement platforms show the strongest ROI when integrated with existing sustainability reporting, generating both measurable reductions and employee engagement benefits valued at $150-300 per participating employee annually.

How are anti-greenwashing regulations affecting climate communications spending? Regulations like the EU Green Claims Directive are redirecting budgets from broad awareness campaigns toward substantiated, verifiable communications. Companies are increasing spending on lifecycle assessment data, third-party verification, and compliance review, typically adding 15-25% to communications budgets but significantly reducing legal and reputational risk.

What role does AI play in climate behavior change? AI enables personalization at scale: segmenting audiences by values, cultural context, and behavioral readiness, then delivering tailored messaging that outperforms generic campaigns by 3-5x on engagement metrics. AI also powers carbon coaching apps that provide real-time feedback on consumption choices. The key limitation remains data quality, as personalization requires granular consumption data that raises privacy concerns.

Are behavior change programs effective in emerging markets? Emerging market programs require fundamentally different approaches. Solution-oriented framing that connects climate action to economic co-benefits (energy cost savings, health improvements, livelihood resilience) outperforms environmentally-focused messaging. Programs led by Rare and similar organizations have demonstrated 20-40% adoption rates for targeted behaviors in Southeast Asia, sub-Saharan Africa, and Latin America when using culturally embedded, community-based delivery models.

Sources

1. McKinsey & Company. "Behavior Change and the Net Zero Transition." McKinsey Sustainability, 2025.
2. International Energy Agency. "Behavioural Changes to Reduce Emissions." IEA World Energy Outlook, 2024.
3. Yale Program on Climate Change Communication. "Climate Change in the American Mind." Yale University, 2025.
4. Nature Climate Change. "Solution-Oriented Framing and Climate Action Intent." Springer Nature, 2024.
5. Oracle Utilities. "Opower Behavioral Energy Efficiency: Global Impact Report." Oracle, 2025.
6. European Commission. "Green Claims Directive: Implementation Guidance." European Commission, 2025.
7. Climate Outreach. "Communicating Climate Change Across Cultures: Evidence Review." Climate Outreach, 2024.