Trees remember everything—even the fall of the roman empire

The timeline of the failure of the Roman state is fairly well established and accepted, thanks to the Romans' love of writing. The circumstances contributing to its disintegration, however, have long been debated among historians and archaeologists. There is no consensus about the relative role of internal failures, such as escalating corruption and civil war, versus external factors, such as the barbarian invasions and pandemics.

Geoscientists Help Map the Pandemic

Data visualization and mapping are valuable tools in the fight against COVID-19. Geoscientists can help healthcare workers and shape public policy.

Tree Rings Could Pin Down Thera Volcano Eruption Date

Research led by the University of Arizona Laboratory of Tree-Ring Research has anchored a long sequence of tree rings, providing context for the civilizations that existed throughout the Bronze and Iron Ages.

Snow on saguaro cactus in desert

Earth Science & Remote Sensing

Earth and planetary sciences are literally the bedrock of scientific work at the University of Arizona, where faculty study a broad array of physical sciences – geology, hydrology, atmospheric science, chemistry, along with use of remote sensing, to probe the secrets of our planet and others.

Earth Dynamics Observatory (EDO)

EDO supports the UA space sciences platform with a downward-looking view to Earth, specializing in satellite remote sensing to monitor and predict changes to the Earth system and inform hazards mitigation and national security in the face of natural disasters, a changing climate, and other environmental stresses.

Walnut Gulch Experimental Watershed

Walnut Gulch Experimental Watershed was established in the 1950s in southeastern Arizona to study floods and the impact of soil and water conservation projects on runoff.