The Carbon Monitoring System (CMS) is a NASA remote monitoring system used to measure carbon dioxide and methane, using instruments placed in satellites and aircraft. The information provided by the CMS can be used to verify the national emission cuts agreed to in the Paris climate accords. CMS has also supported other research projects including providing information that has helped countries assess their carbon emissions from deforestation and forest degradation. In April 2018, President Trump ended funding for the CMS.
