Understanding origins of Arizona’s Sunset Crater eruption of 1,000 years ago

IMAGE: Around 1085 AD, along the southern rim of Northern Arizona’s elevated Colorado Plateau, a volcano erupted, forever changing ancient Puebloan fortunes and all nearby life. Today, ASU School of Earth… view more  Credit: U.S. Geological Survey Around 1085 AD, along the southern rim of Northern Arizona’s elevated Colorado Plateau, a volcano erupted, forever changing ancient […]

Decrease in fossil-fuel CO2 emissions due to COVID-19 detected by atmospheric observations

IMAGE: Birds-eye view photo of Hateruma Island (left) and the monitoring station on the island (right). view more  Credit: NIES Tracking emissions of anthropogenic greenhouse gases by atmospheric observations is a major challenge for policymaking, such as the Paris Agreement. Huge atmospheric observation networks comprised of a variety of platforms including satellites have been developed to […]