How Europe is driving ESG into the mainstream

In recent months, ESG has come under scrutiny, fuelled by political pushbacks in the US and global outflows, with sceptics questioning investor appetite, fund performance and credibility of sustainability labels.

Headlines suggest a retreat. However, from a European perspective, the picture is quite different. On our side of the Atlantic, sustainability has become a core element in how portfolios are being constructed, underpinned by regulation, adviser engagement, and consistent investor demand.

Yet fund flows into sustainable funds have diverged. Morningstar data display that Article 9 funds in Europe recorded outflows of €7.9bn ($9.1bn) in the first quarter of 2025, driven mainly by redemptions in a narrow group of equity categories, while Article 8 funds attracted €52bn, their strongest quarter since 2021. This does not suggest retreat, but rather a more discerning market: investors are scrutinising products more closely and rewarding those that demonstrate credibility and long-term resilience.

Innovative asset and wealth managers have seen the transition to sustainability as a source of new long-term investment opportunities to complement clients’ portfolios and not replace existing non-ESG product offering. Investment flows into Article 8 and 9 funds are expected to continue, regardless of any extreme political stance.

The energy transition will drive economic growth, which cannot rely solely on consumption, especially in countries facing demographic decline. Moreover, the benefits of reduced pollution, technological innovation, social responsibility, transparent governance and efficient resource apply are undeniable.

ESG funds are not about chasing short-term outperformance. They are about gaining exposure to structural themes that will define markets for decades to come

We believe that companies leading in this space will become the next trillion-dollar giants, though this evolution will take time. ESG funds are not about chasing short-term outperformance. They are about gaining exposure to structural themes that will define markets for decades to come.

Take the built sector as an example. According to consultancy McKinsey, buildings and construction are responsible for nearly 40 per cent of global energy-related CO₂ emissions, with more than a quarter coming from building operations.

Decarbonising this sector through retrofits, renewable energy, reapplying and recycling materials, and developing new low-carbon alternatives could unlock vast pools of value over the coming decade.

McKinsey data from 2022 suggests the global market potential of decarbonising the built sector could reach as much as $1.9tn globally, underlining how sustainability themes are not just ethical considerations but powerful financial drivers.

Just as importantly, ESG provides investors with confidence that their long-term goals can be achieved in a way that is both financially sound and impacting positively.

This shift is not limited to Europe. However, it is in Europe where regulations are really driving ESG’s integration into the mainstream.

According to Morningstar, ESG funds now build up a large part of the EU fund market by assets, with combined Article 8 and Article 9 strategies totalling around €6tn.

The EU also committed €578bn to climate-related spfinishing between 2021 and 2027, accounting for 32.6 per cent of its entire budobtain, thereby building sustainability a structural part of its economic policy.

Of course, ESG will continue to face scrutiny, and not every strategy will meet expectations. But that should not be mistaken for a global retreat. We should shift past the ideological debate for or against sustainability, or over whether ESG belongs in portfolios. The debate now is to define what credible sustainable investing sees like and what can deliver to investors in the long term.

The debate now is to define what credible sustainable investing sees like and what can deliver to investors in the long term

The message is clear: ESG is now embedded in the investment landscape. The real differentiator is no longer the label, or how loud it is promoted but the rigour behind it. In that context, sustainable strategies are not slowing down, they are becoming more refined, more resilient, and more transparent to investors.

For advisers and asset managers alike, the opportunity lies in delivering strategies that are not just sustainable by name, but consistent with the mandate and in its outcome.