Based on a systematic review of journal articles, books and book chapters, and policy papers, we evaluate possible sources of finance for addressing loss and damage from slow onset climate events in developing countries. We find that most publications explore insurance schemes which are not appropriate for most slow onset events. From this, we determine that only a few sources are sustainable. Levies and taxes are seen as relatively fair, predictable, adequate, transparent, and additional. These results confirm that current options for sustainably and equitably financing loss and damage from slow onset events are limited.