Climate Change Policy Simulator
C-ROADS is a free, award-winning computer simulator that helps people understand the long-term climate impacts of national and regional greenhouse gas emission reductions at the global level. C-ROADS has helped the world to understand the impact of the emission reduction pledges countries have proposed to the United Nations. These proposals take different forms with different reference and target years, however, using C-ROADS we can rapidly test these policies to determine whether collectively they are enough to stabilize temperature below 2°C. C-ROADS World Climate is made available for free to make insights about what it takes to address climate change more accessible. We encourage you to use C-ROADS as part of a World Climate Simulation, where a group of people play the roles of UN climate negotiators working to create an agreement to limit global warming.
C-ROADS World Climate
C-ROADS World Climate is designed for simple climate policy tests, interactive presentations, and our role-play exercise—the World Climate Simulation. It offers global, 3-region, and 6-region modes in order to test national and regional emission reduction policies. C-ROADS World Climate is available for download to Windows and Mac and can also be run online. Includes French, Spanish, Chinese, German, and Turkish language support.
C-ROADS Pro is designed for technical users looking to analyze specific greenhouse gas emission reduction policies in various forms for up to 15 regions simultaneously. Available for download to Windows and Mac. Download C-ROADS Pro and watch C-ROADS Pro Video Tutorials to get started.
C-ROADS is developed by Climate Interactive, MIT, Ventana Systems, and UML Climate Change Initiative. The name C-ROADS stands for “Climate Rapid Overview and Decision Support” simulator. The model was reviewed by an external scientific review committee, chaired by Sir Robert Watson, former Chair of the Intergovernmental Panel on Climate Change (IPCC). The reviewers recommended C-ROADS for widespread use. Read a summary of their review here.
C-ROADS has been used in top government, corporate, and NGO levels, and by individuals participating in or monitoring the UNFCCC negotiations. Read comments by some of our users.