Why Climate Risk is Bigger Than Any Single Portfolio

Simon Hallett, Head of Climate Strategy recently appeared on A Sustainable Future Podcast, hosted by Jason Mitchell at Man Group, to discuss how investors can take a more practical and effective approach to climate action.

In the conversation, Simon argued that climate investing needs to move beyond portfolio optics and performative notions of “alignment” and instead focus on actions that can contribute to real-world decarbonization. He emphasized that climate change should not be viewed only as an alpha opportunity, but as a system-level beta risk with broad implications across markets and portfolios. From that perspective, asset owners, investment managers, and consultants have a responsibility to think more carefully about stewardship, capital allocation, and how to support the transition in high-emitting sectors.

Rather than concentrating solely on reducing reported portfolio emissions, Simon highlighted the importance of influencing companies, financing transition solutions, and engaging where change is hardest but most necessary. The discussion also covered the limitations of climate data, net-zero frameworks, and other industry tools when they become overly rigid or devolve into box-ticking exercises. Simon noted that these approaches can lose sight of underlying economic realities and the complexity of the transition. For endowments and foundations in particular, he made the case for a more honest, flexible, and economically grounded framework for climate decision-making and long-term investment strategy.

Listen to the full podcast below.