Methane is a potent greenhouse gas with significant implications for climate change. This study investigates high-emission point sources, also known as methane super-emitters, in landfills across the Metropolitan Area of São Paulo, using data from two remote sensing platforms: EMIT and Carbon Mapper. EMIT, aboard the International Space Station, and Carbon Mapper, operating through satellite and airborne sensors, provided complementary datasets that enabled detection and analysis of methane plumes in Caieiras, Guarulhos, and Osasco. Emission rates ranged from 964 to 4,562 kilograms of methane per hour, confirming these landfills as significant sources of anthropogenic methane. The study demonstrates the effectiveness of combining spectral imaging platforms for monitoring urban greenhouse gas emissions and supports the development of mitigation strategies aimed at reducing the environmental impact of the waste sector.