California Air Resources Board

This interactive dashboard is a centralized hub for information about the California Air Resources Board’s California Satellite Methane Project (CalSMP), which uses satellite data to quickly detect and visualize high-emitting methane sources across California. It provides public access to key information, including methane plume locations, supporting data, mitigation status, and more. It also provides important information to other state and local agencies for notification and action as applicable.

Last Updated: November 10, 2025

Contact Us

Contact CalSMP@arb.ca.gov to provide feedback or ask questions. For assistance with web accessibility, please email webaccessibility@arb.ca.gov.