How responsible investment shapes better investment decisions

In this episode, Kate Webber, Chief Solutions Officer at the PRI, is joined by Claudia Wearmouth, Global Head of Responsible Investment at Columbia Threadneedle Investments, and Travis Antoniono, Investment Director for Sustainable Investments at CalPERS.

Together, they explore how responsible investment is being applied in practical, financially material ways, including how it is embedded into investment processes, how transparent dialogue between asset owners and managers supports long-term outcomes, and the role evidence plays in sustainable investment decision-making.

Overview:

Responsible investment is increasingly moving from a specialist function to a core part of investment decision-making. Across public and private markets, sustainability and governance considerations are being integrated into due diligence, portfolio construction, stewardship and long-term risk management.

This episode explores how investors are building practical frameworks around financial materiality, balancing quantitative tools with qualitative judgement, and adapting to rapidly evolving risks such as climate change and AI disruption.

Detailed coverage:

Embedding sustainability into investment processesBoth guests explain how sustainability considerations are now integrated throughout the investment lifecycle, from initial due diligence through to ongoing monitoring and exit decisions.

Financial materiality and fiduciary duty

They explore how responsible investment supports long‑term, risk‑adjusted returns and helps meet fiduciary responsibilities to beneficiaries.

The role of dedicated expertiseTravis Antoniono discusses embedding dedicated sustainability specialists directly into investment due diligence teams, while Claudia Wearmouth outlines how sustainable investment analysts can better work alongside fundamental research teams.

Data, evidence and judgementThe conversation explores how responsible investment relies on a growing evidence base. While data is still evolving, investors increasingly combine quantitative tools with qualitative insight and real-world case studies.

Explore real-world examples of how investors are combining data and judgement in practice in the PRI’s investment case database: https://public.unpri.org/investment-tools/investment-case-database

How AI is changing investment researchAI is beginning to transform investment analysis itself, helping teams assess sector disruption, and emerging financial impacts more dynamically.

Building organisational buy-inBoth guests highlight that embedding responsible investment depends on strong leadership and clear direction, with teams working together to apply it in practice.

The importance of asset owner–manager relationshipsTransparency, trust and detailed communication are highlighted as essential for aligning investment objectives, stewardship expectations and long-term strategy execution.

Practical lessons for investorsThe episode concludes with practical recommendations on how investors can improve governance and decision-making through more consistent use of evidence and ongoing dialogue.

Chapters:

00:08 - Introduction and the investment case for responsible investment01:29 - Embedding sustainability into investment processes05:14 - Sustainability, fiduciary duty and long-term returns10:56 - Building the evidence base for responsible investment13:39 - How AI is changing investment analysis20:15 - Creating organisational buy-in and investment alignment22:18 - Climate solutions, strategy and total portfolio thinking27:12 - Asset owner and investment manager collaboration35:15 - Key lessons on transparency,