From “Sustainable” to “Responsible”: Why the Market Is Re-calibrating

For much of the last decade, sustainability and low-carbon positioning became a near-mandatory badge for companies seeking capital. Entire strategies, pitch decks and investor narratives were shaped less by operational reality and more by the perceived preferences of ESG-focused funds. In many cases, sustainability became a presentation layer rather than a reflection of how a business actually operated.

We are now in the middle of a correction.

This isn’t a rejection of climate science, environmental responsibility, or long-term thinking. It is a market-led re-calibration, driven by experience, regulation, performance data and, increasingly, scepticism. Investors, regulators and corporates alike are learning where the tools genuinely help, where they distort behaviour, and where they allow uncomfortable truths to be obscured.

How sustainability became a distraction

As ESG capital flooded the market, particularly between 2018 and 2022, companies quickly learned that how they framed their impact often mattered more than what they actually did. Sustainability teams were built, reporting frameworks expanded, and carbon strategies developed — sometimes in parallel to, rather than embedded within, core operations.

In some sectors, this led to genuinely positive change. In others, it created a diversion of management time and capital away from fundamentals such as productivity, resilience, supply chain risk, and unit economics.

Large energy companies such as BP and Shell were early examples. Both made high-profile commitments to transition away from fossil fuels, invested in renewables, and heavily marketed their sustainability credentials. Over time, however, shareholder pressure, energy security concerns and returns on capital led to a re-emphasis on traditional hydrocarbon operations. The sustainability narrative didn’t disappear, but it was clearly subordinated to economic reality.

The issue wasn’t hypocrisy. It was the tension between long-term transition and short-term incentives — a tension that many investors had initially underestimated.

Carbon trading and the illusion of progress

Carbon markets were meant to be a pragmatic bridge: a way to put a price on emissions and allow capital to flow toward reduction where it was most efficient. In practice, they also created a mechanism through which highly polluting firms could present themselves in a more favourable light without materially changing their own operations.

Under both voluntary and compliance schemes, companies could continue emitting while purchasing offsets generated by other firms or projects that reduced or absorbed carbon elsewhere. The result was a form of accounting cleanliness rather than operational cleanliness.

Airlines such as Delta Air Lines and United Airlines marketed “carbon-neutral flights” by purchasing offsets, even as absolute emissions continued to rise with passenger growth. Tech companies including Google and Microsoft went further, using high-quality offsets and long-term removal commitments — but still faced scrutiny over whether offsets delayed harder structural changes in data centre energy demand and hardware lifecycles.

At a systemic level, carbon trading allowed positive actors to be leveraged by negative ones. Firms investing in renewable energy, forestry or efficiency improvements effectively subsidised the sustainability narratives of firms that were slower or unwilling to decarbonise internally.

This dynamic has not gone unnoticed by regulators, NGOs or increasingly sophisticated investors.

From trend to mainstream — and into recalibration

By the early 2020s, sustainability had moved from being a differentiator to a baseline expectation, particularly in Europe. ESG funds multiplied, disclosure requirements expanded, and entire advisory ecosystems emerged around sustainability reporting.

Then the pendulum swung.

Rising interest rates, geopolitical instability, energy security concerns and mixed financial performance among ESG-branded funds forced a reassessment. In the US, political backlash against ESG accelerated, with several states withdrawing pension funds from ESG-focused managers and companies openly criticising what they saw as ideological overreach. The US withdrawal from, and later re-entry into, the Paris Agreement became symbolic of how sustainability could be weaponised politically as well as financially.

Even in Europe, the mood shifted. Regulators began tightening definitions, reducing tolerance for vague claims, and introducing liability for greenwashing. The result has been less enthusiasm for bold sustainability slogans and more focus on what can actually be evidenced.

Biodiversity, offsets and the next risk of overreach

Biodiversity Net Gain and nature-based solutions risk following a similar path if treated primarily as financial instruments rather than ecological ones. As with carbon, there is a danger that biodiversity credits and habitat units become tools for optics rather than outcomes.

If a highly disruptive development can claim environmental virtue by purchasing units generated elsewhere, without meaningful changes to design, location or intensity, the same structural problem reappears. The market is already alert to this risk.

The case for the “Responsible” business

Against this backdrop, a quieter but more durable idea is gaining traction: responsibility rather than performative sustainability.

A responsible business does not claim to be “net zero” because of offsets. It focuses on reducing waste, improving efficiency, strengthening supply chains, treating labour fairly, and making decisions that stand up to scrutiny even when they are inconvenient.

This might mean:

• Accepting that some activities are inherently impactful and managing them honestly rather than masking them.
• Prioritising absolute reductions where possible, and transparency where they are not.
• Avoiding the temptation to contort the business model to fit a sustainability label that doesn’t quite fit.

Responsibility is less marketable than sustainability. It doesn’t always fit neatly into a slide. But it tends to survive regulatory change, political shifts and investor cycles far better.

Advisors and investors are shifting too

Importantly, this shift is not just happening among corporates. Many sustainable and impact-focused investors are also recalibrating.

Firms such as Generation Investment Management, Baillie Gifford and Clean Growth Fund have become more explicit with founders: do not twist your business to sound sustainable if it isn’t. Focus instead on being credible, well-run and honest about trade-offs.

In parallel, advisory organisations such as Responsible Business (responsible-business.org.uk) are working with start-ups, SMEs and investors to embed the principles of responsibility into strategy and execution. Rather than coaching teams to shape their narrative around what investors want to hear, these advisors focus on what the business actually does, helping align operational practice with long-term value creation and risk management.

Behind closed doors, many funds now actively encourage management teams to be transparent about their trade-offs rather than lean on superficial ESG signalling — recognising that long-term value is better served by resilience, governance and operational discipline than by fashionable language.

An honest equilibrium

The recalibration underway does not signal the end of sustainability. It signals its maturation.

The market is learning that tools like carbon trading, biodiversity credits and ESG scoring are just that: tools. Used well, they can accelerate progress. Used poorly, they distort incentives and erode trust.

The likely winners in the next phase will not be the companies with the most polished sustainability narratives, but those that can demonstrate responsibility in how they operate, decide and adapt — even when the market mood shifts again.

In a world increasingly allergic to exaggeration, honesty may turn out to be the most investable trait of all.