A critical component of Carbon Mapper’s mission is to persistently pinpoint, quantify and track strong methane and carbon dioxide (CO2) emissions at facility scale and to make this data free and open to the public, providing accessibility and transparency to maximize impact.

With its satellite plus airborne monitoring technology, Carbon Mapper shines a spotlight on where, when and how methane and CO2 emissions are released. Its independent, facility-scale data insights increase global accessibility, transparency and understanding of methane and CO2 data, unlocking a host of new solutions to operators, regulators and civil society to reduce the amount of methane emissions escaping into the atmosphere.


The current Carbon Mapper data portal is a research prototype, originally developed by Carbon Mapper and colleagues at NASA’s Jet Propulsion Laboratory, allowing users to explore, analyze, and download point-source methane data collected in select U.S. regions since 2016. The portal will be periodically updated with new data sets from future airborne methane surveys.

The Carbon Mapper data systems and the underlying algorithms have benefited from five years of development under several NASA-funded programs including the Carbon Monitoring System (CMS), ACCESS and Advanced Information Systems Technology (AIST) programs. Those projects have improved the accuracy, efficiency and utility of methane and CO2 data products and analytics. Several of these research programs are ongoing and will be infused into future versions of the Carbon Mapper data portal.

Some of this technology has been made available to the California Air Resources Board to support its California-specific methane data portal. Additional funding for airborne campaigns and data sets has been provided by California Air Resources Board, California Energy Commission, the National Institute of Standards and Technology, the University of Arizona, Occidental Petroleum, U.S. Climate Alliance, RMI and Environmental Defense Fund.

Questions or feedback about the data? Please view our Data Portal FAQ or send an email to