Sustainable finance has evolved from a niche allocation into a core portfolio consideration. As the market has matured in both depth and sophistication, with investors now navigating an increasingly broad range of strategies, from ESG integration and impact funds to transition finance and nature-based solutions. Whilst this growing optionality is critical to mobilising capital at the scale required to meet global climate targets, it has also introduced a new challenge. As highlighted at COP30 last year in Brazil, the urgency of climate finance is clear. However, a key question to emerge in tandem is whether this growing range of solutions, alongside the proliferation of frameworks, data and product structures, is making it increasingly difficult for investors to deploy capital with confidence.