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The bright sun sets behind some trees near Soleng Tom Elementary School on Tucson's east side.

Hot Weather Forecast Warms Up Urban Planning Research

UA team investigating solutions to daily buildup of city heat.
Felis domesticus made it on the list of invasive species.

Feral Cats Make List of Invasive Species in the West

Salt Cedars, mussels and crayfish among the less cuddly pests listed.
The Tucson Desert Art Museum opened in 2013 and is located on the city's east side.

A Desert Museum for Art and History

Tucson has two different attractions with "desert museum" in their names.
University of Arizona tree-ring scientist Valerie Trouet taking a pencil-thin core from an old Bosnian pine growing on Mount Olympus in Greece.

Tree Rings Tell Story of Jet Stream

Changes to North Atlantic air flows alter European summer weather.

As Valley Fever Cases Grow, Research Aims to Improve Diagnoses, Treatment

A UA study center looks at effects of delayed diagnoses, hopes to pioneer rapid test.
A saguaro cactus flower blossom.

Saguaro Genome Shows Why Many Cactus Species Are Hard to Classify

Researchers believe that long lives and long generation times have led to mismatches in the history of species.
A Mount Graham Red Squirrel.

Summer Fire Destroys Habitat, Food of Endangered Red Squirrel

A census found a dramatic decrease in the population of the Mount Graham red squirrel following the Frye Fire.
Global average carbon dioxide concentrations as seen by NASA’s Orbiting Carbon Observatory-2 mission, June 1-15, 2015.

NASA: Spike In Atmospheric CO2 Related To El Nino

A vicious cycle might await if future climates reflect similar conditions of heat and drought.
Hurriane Maria in the Caribbean approaching Puerto Rico, September 2017.

Raytheon Drones Fly Into Hurricanes to Collect Data

'Coyotes' were used recently in Hurricane Maria to aid in continuous monitoring.
The US Fish and Wildlife Service says the Sonoyta mud turtle is in danger of going extinct. There are five known populations, one is Arizona and four in Sonora.

Rare Arizona Turtle to Join Endangered Species List

US Fish and Wildlife says the reptile is in danger of extinction.
A view of Tucson from Tumamoc Hill.

Pima County to Get Regular Air-Quality Forecasts

State environmental department to provide a 5-day outlook for the county.
The fish survey team in the Santa Cruz River in Marana, 2015.

Ecologist: New Fish Swimming in Improving Water of Lower Santa Cruz

Final report shows new fish species, improved water quality.
Crews work to clear Wet Canyon on Mount Graham. The canyon was overrun with debris and sediment when multiple storms brought heavy rainfall to areas that were severely burned during the Frye Fire.

USGS: Wildfire-Caused Erosion Endangers Western Watersheds

Denuded landscapes allow sediment to soak up or contaminate run-off.
Patagonia Lake State Park and surrounding protected areas provide habitats for many species of wildlife.

State Park Benefits from Summer Monsoon

Rain adds welcome water to the popular destination.
DeAnna Bublitz finds plenty of cicadas on the University of Arizona's mesquite trees.

Summer's Insects Draw Scientists to Southern Arizona

Hot and humid weather is optimal for exploring the outdoors.
The Flandrau Science Center and Planetarium (left) and the Kuiper Space Sciences Building (right) on the University of Arizona campus.

UA Opens Science Classes to the Community

The school is offering reduced tuition to attend lectures in many subjects.

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