Why responsible investment is here to stay

Written by Lori Campbell on 7th May 2026

Responsible investment has had a difficult few years.

Higher interest rates, geopolitical instability and a backlash against ESG investing in parts of the US have prompted some investors to question whether sustainability-focused investing is losing momentum. A number of responsible funds have underperformed broader markets in recent years, while concerns around greenwashing have also damaged trust.

But focusing only on short-term market cycles risks missing a much bigger picture.

The underlying forces driving responsible investment have not disappeared. In many cases, they are becoming more deeply embedded in how businesses operate, how regulators intervene and how investors assess long-term risk and opportunity.

Far from fading away, responsible investment is increasingly becoming part of mainstream financial thinking.

A long-term shift, not a short-term trend

Sustainability-focused investing is often framed as an ethical choice. But for many investors and businesses, it is also a practical response to structural economic change.

Climate risk, resource scarcity, biodiversity loss, energy security and changing regulation are no longer theoretical concerns sitting outside the financial system. They are increasingly shaping company performance, supply chains, insurance costs, consumer behaviour and investment returns.

Research published in Nature found that six of the planet’s nine environmental boundaries have now been breached, including climate change, biodiversity loss and freshwater availability. At the same time, governments and regulators around the world are tightening disclosure requirements and increasing scrutiny of corporate sustainability claims.

This creates both risks and opportunities. Businesses that fail to adapt to a lower-carbon, more resource-efficient economy may face rising costs, stranded assets, reputational damage or regulatory pressure. Meanwhile, companies developing solutions in areas such as renewable energy, electrification, energy efficiency and sustainable infrastructure are benefiting from significant long-term investment.

This is one reason many responsible investors continue to focus on the long term rather than short-term volatility.

Performance challenges don’t tell the whole story

The recent struggles of some sustainable investment funds are well documented.

Many ESG and responsible funds outperformed during the market turbulence of 2020, partly because of lower exposure to oil and gas and higher exposure to technology and growth stocks. But when inflation surged and interest rates rose sharply in 2022 and 2023, those same growth-focused sectors came under pressure.

At the same time, energy companies benefited from soaring oil and gas prices following Russia’s invasion of Ukraine, while renewed instability in the Middle East has continued to fuel volatility in global energy markets. This has created a more difficult environment for many sustainability-focused strategies.

Critics argue this has exposed weaknesses in ESG investing, questioning whether some sustainable funds are overly concentrated, inconsistently defined or too reliant on marketing language rather than measurable outcomes.

Those criticisms are not without merit. The broad umbrella of “ESG” has often grouped together very different approaches, ranging from simple exclusions to genuinely impact-led investment strategies. In some cases, products marketed as sustainable have failed to meet investor expectations, contributing to concerns around greenwashing.

But short-term underperformance or poor implementation does not necessarily invalidate the broader investment case.

Many responsible investors are not simply trying to avoid certain industries. They are attempting to identify businesses that are better positioned for long-term economic, environmental and regulatory change.

Investor demand remains strong

Despite political backlash in some markets, investor interest in sustainability-focused investing remains significant.

Morgan Stanley’s most recent Sustainable Signals report found that 77 per cent of global individual investors are interested in investments that seek positive social or environmental impact alongside financial returns. More than half said their interest had increased over the previous two years.

This shift is also being reflected in corporate behaviour.

A growing number of companies now view sustainability not simply as a reputational exercise, but as part of long-term business resilience and competitiveness. Issues such as energy efficiency, supply chain security, climate adaptation and workforce expectations are increasingly becoming commercial considerations rather than optional extras.

Importantly, regulation is also beginning to evolve. In the UK, the Financial Conduct Authority’s Sustainability Disclosure Requirements (SDR) aim to tackle greenwashing and improve transparency around investment labels and sustainability claims. While full implementation will take time, the direction of travel is clear: greater scrutiny, clearer standards and increasing pressure for evidence-based claims.

That matters because investors are becoming more discerning. Many no longer accept vague promises that a fund is “green” or “ethical”. They want transparency around holdings, stewardship, impact and real-world outcomes.

Responsible investing is evolving

Responsible investment today looks very different from a decade ago. Investors are increasingly asking tougher questions about impact, transition risk, corporate behaviour and accountability. Meanwhile, investment providers are under growing pressure to demonstrate substance rather than simply sustainability branding.

The sector is still evolving and there will undoubtedly be setbacks, contradictions and periods of market underperformance.

But the core drivers behind responsible investment – regulation, climate risk, resource pressures, consumer expectations and the search for long-term resilience – are unlikely to disappear.

For investors, the challenge is no longer simply whether sustainability matters. It is understanding which businesses and investment strategies are genuinely prepared for the economic realities ahead.

Important information: This article is journalistic and should not be viewed as financial advice. Remember that when you invest, your capital is at risk and the value of investments can go down as well as up.

Don't miss the good stuff!

Sign up for the newest and best green money deals in your inbox every week