"EMIT (Earth Surface Mineral Dust Source Investigation) was built to help scientists understand how dust affects climate. It can also pinpoint emissions of the potent greenhouse gas.
NASA’s Earth Surface Mineral Dust Source Investigation (EMIT) mission is mapping the prevalence of key minerals in the planet’s dust-producing deserts. This is crucial information that will help advance our understanding of airborne dust’s effects on climate. However, EMIT has demonstrated another critical capability: detecting the presence of methane, a potent greenhouse gas. According to the U.S. Environmental Protection Agency (EPA), methane is more than 25 times as potent as carbon dioxide at trapping heat in the atmosphere."