En-ROADS and C-ROADS and their support materials and documentation are freely available tools for exploring climate solutions. You’re welcome to use them to create scenarios, lead workshops or public presentations, support your own research, or share insights in publications and online platforms. This FAQ explains how to properly credit Climate Interactive and MIT Sloan when using the simulators and materials and promoting your events. It also covers how you can refer to yourself as a facilitator or En-ROADS Climate Ambassador.


Overview of the simulators, materials, and licenses

  • Both simulators are free-to-use and available online: 
  • The online En-ROADS simulator can be used for commercial or non-commercial purposes. 
  • We offer ready-to-use support materials and documentation for workshops, games, assignments, presentations, and outreach. These resources are licensed under a Creative Commons Attribution 4.0 International License. This license lets you remix, adapt, and build upon Climate Interactive’s work, even commercially, as long as you give appropriate credit for the original creation of the materials. 

  • Commercial and non-commercial licenses for the En-ROADS software development kit (SDK) are also available for customized applications. Reach out to support@climateinteractive.org for more information.


Attribution and branding guidelines

When promoting your En-ROADS event (flyers, social media, websites, videos), and at your event itself, please include this credit line (and link to the organizations’ websites: https://www.climateinteractive.org/ and https://mitsloan.mit.edu/):


“En-ROADS is a tool created by Climate Interactive and MIT Sloan.”


If your event features the En-ROADS Climate Solutions Workshop or the Climate Action Simulation game, also include: 


“The En-ROADS Climate Solutions workshop was designed by Climate Interactive and MIT Sloan.” or “The Climate Action Simulation was designed by Climate Interactive, MIT Sloan, and the UMass Lowell Climate Change Initiative.”



Keep reading for more detailed guidance.

How to cite and reference En-ROADS and C-ROADS and their documentation


Use the following citation formats in written work, reports, or presentations: 

Notes: 

  • Replace “2025” with the current year. 
  • Find the version number at the end of the En-ROADS or C-ROADS URL (for example, “v=25.6.0” means Version 25.6.0), or at the bottom right corner of the simulator. 
  • For in-text citation, use the recommended format: {En-ROADS or C-ROADS} (Version X.X.X.; Climate Interactive & MIT Sloan, 2025)

  • Supporting documentation 
    If you’re using the user guide or technical references of the models, include the following recommended citations: 
    • En-ROADS Technical Reference: 
      Siegel, L., et al. (2025). En-ROADS Technical Reference. https://docs.climateinteractive.org/projects/en-roads-reference-guide/en/latest/ 
    • En-ROADS User Guide: 
      Chikofsky, J., et al. (2025). En-ROADS User Guide. https://docs.climateinteractive.org/projects/en-roads/en/latest/ 
    • C-ROADS Technical Reference: 
      Siegel, L., et al. (2025). C-ROADS Technical Reference. https://docs.climateinteractive.org/projects/c-roads-reference-guide/en/latest/index.html


Additional guidelines and frequently asked questions


Can I use screenshots of En-ROADS in a publication (e.g., a textbook or journal article)?


Yes! We encourage people to share En-ROADS across mediums, including publications. If you use En-ROADS in a publication please let us know by contacting us at support@climateinteractive.org.


Logo usage:

  • You may use the En-ROADS logo to promote your events or describe your role as an En-ROADS Climate Ambassador. 
  • We encourage you to use this flyer to promote your events.
  • Do not use the Climate Interactive or MIT logos for general promotion unless you are directly referencing the creation of En-ROADS or its official materials. These logos are reserved for official use by the organizations and should not be used in broader promotional or marketing contexts. For more information, please see the Outline of Expectations for En-ROADS Climate Ambassadors.


How can I refer to myself as a facilitator or Ambassador?

You’re welcome to refer to yourself as an En-ROADS facilitator if you are actively using the simulator with audiences—or as an En-ROADS Climate Ambassador if you’ve been accepted into the Ambassador program and received a certificate. Please avoid implying official employment or endorsement by Climate Interactive or MIT. For more information, please see the Outline of Expectations for En-ROADS Climate Ambassadors.



Thank you for crediting our work and for letting us know when you’re citing it in publications, websites, etc. You can send a note to us at support@climateinteractive.org.