Both an emissions calculation tool and a reporting tool, CARROT helps California Climate Action Registry participants track and report their GHG emissions in a consistent format. The tool is designed in accordance with CCAR's general reporting and certification protocols. Visit the organization Web site for online demonstrations geared toward program members and public users.

In 2003, CARROT was chosen to provide the foundation for the World Economic Forum's GHG Register, a global initiative for tracking worldwide corporate GHG emissions.