About Us

About The Climate Registry

The Climate Registry (TCR) is a non-profit organization governed by U.S. states and Canadian provinces and territories.  TCR designs and operates voluntary and compliance GHG reporting programs globally, and assists organizations in measuring, reporting and verifying (MRV) the carbon in their operations in order to manage and reduce it. TCR also consults with governments nationally and internationally on all aspects of GHG measurement, reporting, and verification.

Our Vision

We envision a world on a measurable path to sustainability.

Our Mission

We will empower the world’s leading organizations with the highest quality carbon data so they can operate more efficiently, sustainably, and competitively.


Established in 2007, The Climate Registry was formed to continue the work of the California Climate Action Registry (CCAR). Created by the State of California in 2001, CCAR promoted and protected businesses’ early actions to manage and reduce their greenhouse gas (GHG) emissions. Through the state mandate, CCAR established protocols to guide emissions inventories and manage an online reporting tool, the Climate Action Registry Reporting Tool (CARROT), to serve as a central database for emissions reports.  Members of CCAR served as true leaders in environmental responsibility and were among the first in the world to measure their emissions according to comprehensive and rigorous standards and make their emissions publicly accessible online. Together, CCAR and its members influenced California climate change policy, including Assembly Bill 32 (AB 32), and worked to ensure proper recognition from the state for early actions to reduce emissions.  Recognizing climate change is a global issue and that success in emissions reporting must be based on consistent data in an integrated system that stretched beyond California’s borders, CCAR was instrumental in establishing TCR with the mission of expanding CCAR’s emissions reporting work to include all of North America.  CCAR accepted its last emissions inventory reports for 2009 in December 2010 and officially transitioned its members to The Climate Registry.  CCAR is now a program of The Climate Registry’s sister organization, the Climate Action Reserve.

For more information, please visit the California Climate Action Registry website.