CO2M, also known as Sentinel-7, is a series of future European Earth observation satellites within the EU's Copernicus programme. Expected to have its first launch in November 2027, CO2M will be the first of the Copernicus Sentinel Expansion Missions. Its goal is to provide global measurements of anthropogenic emissions of CO<sub>2</sub>, CH<sub>4</sub>, and NO<sub>2</sub> to support fulfilling the Paris Agreement. The mission consists of at least three satellites: CO2M-A, CO2M-B, and CO2M-C. Each satellite will be equipped with an infrared spectrometer, a multi-angle polarimeter, and a cloud imager.