A unified corporate standard is taking shape, promising to streamline reporting and cut down on duplication for businesses worldwide. In September 2025, GHG Protocol and ISO announced that they would be partnering in order to create a coherent single framework. “Both ISO and GHG Protocol have a shared vision to efficiently advance climate action and simplify the task for all stakeholders. Tim Mohin, chief executive of GHG Protocol, said: “A consolidated corporate standard represents a significant step toward integrating and harmonising greenhouse gas accounting across the world. According to GHG Protocol, multiple options are now being explored.