The main open source software development efforts should focus on three main components. First, the decentralized server hosting the cross-platform web application that can integrate multiple existing climate related platforms, so that they can interoperate with common functions and reconciled records. Second, the consolidation of protocols and standards to enable such an interoperable and multi-layers climate accounting ecosystem, and the required governance mechanism to achieve and maintain it. This includes protocols for metadata schemas (eg. for the nested accounting function), as well as shared API functions. And third, a climate portal that allows multi-stakeholder users to interface and interacts with the global accounting system, either directly via the web application or via their integrated platforms.