View this page as a printable PDF here: RCP 8.5-The Impossible Worst-Case Climate Scenario Key Takeaways: The climate model known as RCP8.5, long promoted as the ‘business-as-usual’ climate scenario, has been officially declared implausible by the international committee responsible for the Intergovernmental Panel on Climate Change (IPCC) climate scenarios. The new CMIP7 framework has eliminated RCP8.5 … Continue reading RCP8.5: The Impossible ‘Worst-Case’ Climate Scenario