For the past couple of years, Eurosif, the pan-European association promoting Sustainable Finance at the European level, has put considerable effort into examining the challenges and possible solutions regarding the accuracy, efficacy, and comparability of climate-related reporting. A specially assembled Climate Reporting & Indicators (CRI) Advisory Group consisting of practitioners with a keen interest in ESG data has been discussing the matter in depth, searching for an answer to one overarching question: Which climate indicators are truly decision-useful for investors?