Urgent action needs to be taken to respond to the impacts and causes of climate change. Globally, academics, civil society organizations (CSOs) and politicians agree widely that governments must act to ensure and assist climate change mitigation and adaptation actions. Public climate finance is needed to make this happen in effective, efficient and adequate ways in developing countries. Such financing, similar to development finance, contains the basic objective of transferring large quantities of financial resources across international borders. Aside from pure financial considerations the challenges found in Official Development Assistance (ODA) closely relate to mitigation and adaptation mechanisms.