ESG Communication and Brand Trust: Why Sustainability Messaging Can Build or Break Consumer Confidence

Background to the Study

In the last two decades, the business environment has witnessed a fundamental shift in the way organisations communicate value to stakeholders. Beyond product quality and price, consumers, investors, and regulators increasingly demand evidence that organisations operate responsibly with respect to the environment, society, and internal governance structures. This shift has given rise to ESG communication, a strategic form of corporate messaging through which organisations disclose their sustainability practices, social impact initiatives, and governance standards to stakeholders through annual sustainability reports, advertising, social media, product labelling, and other marketing communication channels.

ESG communication has become an integral component of contemporary branding because it signals an organisation's commitment to long-term value creation rather than short-term profit maximisation alone. Brands across sectors have invested substantially in communicating their environmental stewardship, social responsibility programmes, and governance reforms as a means of differentiating themselves in increasingly competitive and information-saturated markets. However, the proliferation of ESG messaging has also been accompanied by growing consumer scepticism, particularly around the authenticity of such claims, a phenomenon widely referred to in marketing literature as greenwashing. Regulators have responded directly to this concern: the U.S. Federal Trade Commission maintains its Green Guides for environmental marketing claims, which require that environmental claims be backed by competent and reliable evidence and warn against vague or unsubstantiated language such as "eco-friendly" or "sustainable" when no clear substantiation exists.

Brand trust, on its part, represents the confidence consumers place in a brand's reliability, integrity, and ability to deliver on its promises. It is a critical antecedent of brand loyalty, repeat purchase behaviour, positive word-of-mouth, and overall brand equity. In a marketplace where consumers are exposed to conflicting information and heightened corporate accountability expectations, the manner in which ESG issues are communicated may either strengthen or erode the trust consumers place in a brand. Where ESG communication is perceived as transparent, consistent, and substantiated by verifiable action, it is likely to enhance brand trust; conversely, where such communication is perceived as exaggerated, vague, or self-serving, it may trigger scepticism and damage brand credibility. It is against this background that this study investigates the effect of ESG communication on brand trust, with a view to understanding how the environmental, social, and governance dimensions of corporate communication individually and collectively shape consumer trust, and the extent to which perceived greenwashing moderates this relationship.

Statement of the Problem

Despite the growing investment by organisations in ESG communication, many brands continue to struggle with converting such communication into tangible consumer trust and loyalty. Several high-profile cases of alleged greenwashing, in which brands were accused of overstating or misrepresenting their environmental and social credentials, have heightened consumer scepticism toward corporate sustainability claims generally. This creates a paradox for marketing practitioners: while stakeholders increasingly demand ESG disclosure, poorly executed or perceived-as-insincere ESG communication may do more harm than good to brand reputation and trust.

Furthermore, much of the existing literature on ESG has focused predominantly on its financial and investment implications, particularly its effect on firm performance, stock returns, and investor decision-making, with comparatively limited empirical attention paid to its consumer-facing marketing communication dimension and its direct effect on brand trust, especially within emerging market contexts. There also exists limited understanding of how the three distinct pillars of ESG, environmental, social, and governance, individually contribute to brand trust, as most studies treat ESG as a composite construct rather than disaggregating its effects. Additionally, the moderating role of perceived greenwashing in the ESG communication-brand trust relationship remains underexplored. This study, therefore, sought to address these gaps by empirically examining the effect of ESG communication, disaggregated into its environmental, social, and governance components, on brand trust, and by assessing the moderating influence of perceived greenwashing on this relationship.

Aim and Objectives of the Study

The aim of this study was to examine the effect of Environmental, Social and Governance (ESG) communication on brand trust. The specific objectives were to:

●        Determine the effect of environmental communication on brand trust.

●        Examine the influence of social responsibility communication on brand trust.

●        Assess the effect of governance-related disclosure on brand trust.

●        Evaluate the moderating role of perceived greenwashing on the relationship between ESG communication and brand trust.

Research Questions

●        What is the effect of environmental communication on brand trust?

●        What is the influence of social responsibility communication on brand trust?

●        What is the effect of governance-related disclosure on brand trust?

●        To what extent does perceived greenwashing moderate the relationship between ESG communication and brand trust?

Significance of the Study

This study is significant to several categories of stakeholders. To marketing practitioners and brand managers, the findings provide empirical evidence on which dimensions of ESG communication most strongly influence brand trust, thereby guiding the design of more effective, authentic, and trust-building sustainability communication strategies. To corporate organisations, the study offers insight into the risks associated with perceived greenwashing and how these risks can be mitigated through more credible ESG disclosure practices.

To policymakers and regulatory bodies, the study contributes evidence that may inform the development of clearer ESG disclosure standards and advertising guidelines aimed at protecting consumers from misleading sustainability claims. To the academic community, the study contributes to the growing body of knowledge on ESG within the marketing discipline, particularly by disaggregating the ESG construct and empirically testing the moderating role of greenwashing perception, an area that remains relatively underexplored in emerging market literature. Students designing similar disaggregated-construct studies can find additional structural guidance through ScholarNestHub's research coaching service, which supports learners refining their proposals, instruments, and analysis chapters. Finally, the study serves as a reference material for future researchers interested in ESG communication, brand trust, and related constructs.

Scope of the Study

This study is focused on examining the effect of ESG communication on brand trust among consumers of fast-moving consumer goods (FMCG) brands that have publicly communicated ESG initiatives. Data were collected within a defined period of the academic session from a delimited consumer population. The study covers the three broad dimensions of ESG communication, environmental, social, and governance, and their combined and individual effects on brand trust, as well as the moderating role of perceived greenwashing.

The study, like most survey-based research, is subject to certain limitations. First, the use of a structured questionnaire relies on the self-reported perceptions of respondents, which may be subject to social desirability bias. Second, the study was restricted to a specific geographic area and consumer segment, which may limit the generalisability of findings to other markets or industries. Third, time and financial constraints limited the sample size and the scope of brands examined. Notwithstanding these limitations, reasonable steps, including the use of validated scales and appropriate statistical techniques, were taken to ensure the reliability and validity of the findings.

Operational Definition of Terms

ESG Communication: The deliberate disclosure and promotion, through marketing and corporate communication channels, of an organisation's environmental, social, and governance practices to stakeholders.

Brand Trust: The extent to which consumers believe a brand is reliable, honest, and capable of fulfilling its promises consistently over time.

Environmental Communication: Messaging that conveys an organisation's practices related to environmental sustainability, such as carbon reduction, waste management, and resource conservation.

Social Responsibility Communication: Messaging that conveys an organisation's social impact initiatives, including community development, labour practices, and diversity and inclusion.

Governance Disclosure: Communication relating to an organisation's leadership structure, business ethics, transparency, and accountability mechanisms.

Greenwashing: The practice of conveying a false or exaggerated impression of an organisation's environmental or social responsibility for marketing advantage, a practice the FTC's Green Guides specifically caution marketers against.

Conclusion

ESG communication is not a guaranteed trust-builder; it is a bet that only pays off when it is credible. This study's findings show that environmental, social, and governance messaging each build brand trust on their own terms, but that any of them can backfire the moment consumers sense exaggeration or insincerity. The practical lesson for brands is that specificity, consistency, and independent verification matter more than the volume or polish of the messaging itself. Researchers exploring related themes in corporate communication, sustainability marketing, or consumer trust can find further sample studies in ScholarNestHub's project topics library, spanning marketing, computer science, and public administration.

Frequently Asked Questions

1. What is ESG communication?

It is the deliberate disclosure and promotion, through marketing and corporate communication channels, of an organisation's environmental, social, and governance practices to stakeholders, typically through sustainability reports, advertising, and product labelling.

2. Does ESG communication actually build brand trust?

Yes. Research in this area finds that environmental communication, social responsibility communication, and governance disclosure each have a positive and statistically significant effect on brand trust when perceived as credible.

3. Which ESG dimension has the strongest effect on brand trust?

Findings generally show environmental communication carries the strongest effect, followed by social responsibility communication and then governance disclosure, though all three contribute meaningfully to brand trust.

4. What is greenwashing?

Greenwashing is the practice of conveying a false or exaggerated impression of an organisation's environmental or social responsibility for marketing advantage. It is a major reason ESG communication can backfire rather than build trust.

5. How does perceived greenwashing affect the ESG-trust relationship?

Perceived greenwashing significantly moderates the relationship, weakening the positive effect of ESG communication on brand trust whenever consumers perceive the messaging as exaggerated, vague, or insincere.

6. What makes ESG communication feel authentic rather than exaggerated?

Authenticity tends to come from specificity, consistency over time, and third-party verification, rather than broad, unsubstantiated claims like "eco-friendly" or "sustainable" used without clear evidence.

7. What research methodology suits this kind of study?

Studies in this area typically use a survey research design with a structured questionnaire administered across relevant consumer segments, analysed using descriptive statistics alongside inferential techniques such as Pearson correlation, multiple regression, and chi-square tests.

8. What regulatory guidance exists on environmental marketing claims?

In the United States, the FTC's Green Guides provide administrative guidance on avoiding deceptive environmental marketing claims, requiring that such claims be backed by competent and reliable evidence rather than vague or symbolic language.

9. What can brands do to make ESG communication more trust-building?

Recommended practices include adopting verifiable, specific, and consistent ESG disclosures, integrating ESG communication into broader Integrated Marketing Communication strategies, and avoiding vague or symbolic sustainability claims that could be perceived as greenwashing.

10. Where can I find a sample project on this topic for reference?

ScholarNestHub's marketing project library includes related sample studies on brand communication and consumer trust that can serve as structural and methodological references for students developing their own research.