The Global Environmental Data Strategy is designed to develop a federated data eco-system that coalited by a hybrid governance structure, collective intelligence powered action framework and an adaptive vision calibrating mechanism that shared the common standard across UNEP and the consensus with the public. It will become a powerful tool to unite the efforts of organizational digital practice, minimize the negative tactics in competition which generates great threat to the alignment of the UN high agenda strategy and data supply justice to people, places, and the planet. To tackle the climate and extinction crises with science-supported action, and achieve humanitarian action, sustainable development, and peace and security, UNEP needs to lead one clear Global Environmental Data Strategy. This document outlines the principles and objectives of such a strategy, the pathways leading there, a roadmap for implementation, and the expected impacts on the ground.