REDUCING CH4 AND FOSSIL FUEL CO2 EMISSIONS REMAINS A TOP CLIMATE MITIGATION PRIORITY FOR STAKEHOLDERS AROUND THE WORLD. STATES SUCH AS CALIFORNIA HAVE COMMITTED TO AMBITIOUS GHG STABILIZATION TARGETS. STATE AGENCIES SUCH AS THE CALIFORNIA AIR RESOURCES BOARD (CARB) ARE STRONGLY MOTIVATED TO VERIFY EMISSIONS AND INFORM POLICY FORMULATION AT THE SCALE OF MAJOR EMITTING REGIONS AIR BASINS AND CITIES. ADDITIONALLY PRIVATE COMPANIES SUCH AS CHEVRON HAVE EXPRESSED INTEREST IN BETTER FACILITY-SCALE EMISSIONS DATA TO REDUCE THEIR GREENHOUSE GAS FOOTPRINTS AND PRODUCT LOSS. MEANWHILE SEVERAL FOUNDATIONS SUCH AS THE ROCKY MOUNTAIN INSTITUTE (RMI) ARE WORKING TO ESTABLISH TRUSTED CLIMATE DATA INITIATIVES THROUGH PUBLIC-PRIVATE PARTNERSHIPS. A COMMON FEATURE OF THESE INTERESTS IS A FOCUS ON FACILITY-SCALE POINT SOURCE EMITTERS AND THEIR CONTRIBUTION TO LOCAL EMISSION BUDGETS TO PRIORITIZE MITIGATION EFFORTS. A COMMON CHALLENGE IS THAT CH4 AND CO2 EMISSIONS DATA AT THOSE SPATIAL SCALES IS CURRENTLY SPARSE INACCURATE OR NON-EXISTENT. THERE IS AN URGENT NEED TO PROVIDE CH4 AND CO2 DATA AND ANALYTICS THAT ARE TRUSTED TIMELY AND AT SPATIAL SCALES RELEVANT TO DECISION MAKING. A TIERED OBSERVATIONAL STRATEGY AND INTEGRATED DATA ANALYSIS FRAMEWORK HAVE THE POTENTIAL TO LEVERAGE EMERGING AND PLANNED AIRBORNE AND SATELLITE REMOTE SENSING CAPABILITIES TO ADDRESS THESE CHALLENGES AND STAKEHOLDER NEEDS (ULTIMATELY IN KEY REGIONS GLOBALLY).