The C-ROADS 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.Explore C-ROADS ❯
Watch a short demonstration of its operation and features below.
Frequently Asked Questions about C-ROADS
Explore frequently asked questions about the C-ROADS Simulator—exploring how C-ROADS is used, maintained, and the data and assumptions behind the model.
World Climate Training Plan
Becoming an effective facilitator of the World Climate Simulation takes some training. Follow this plan to learn about the game, the C-ROADS simulator, and facilitation techniques.
Explore our Peer-reviewed Paper
This paper from System DynamicsReview, co-authored by scientists at Climate Interactive and MIT, gives an overview of the structure and utility of the C-ROADS simulator.
“More chilling is the computer modeling [the C-ROADS team] did against the current plans of every single country that is planning to do anything, and it’s not that big a group…. They took all of these current projections and ran the computer models against what is currently happening in the science. And in every single case, it showed that we are not just marginally above a catastrophic tipping point level. We are hugely, significantly above it.”U.S. Special Presidential Envoy for Climate
“The results [of C-ROADS] have been very helpful to our team here at the U.S. State Department….The simulator’s quick and accurate calculation of atmospheric carbon dioxide levels and temperatures has been a great asset to us. …I have made use of the results in both internal discussions, and in the international negotiations….”former Deputy Special Envoy for Climate Change, U.S. Department of State
“The C-ROADS model from Climate Interactive was used by me and other members of President Obama’s climate-change team for gaining rapid insights into the consequences of alternative greenhouse-gas-emissions trajectories for the United States and the rest of the world.”White House Science Advisor, 2008-2016