Researchers at the University of Arizona Water and Energy Sustainable Technology Center are testing wastewater across the country to trace coronavirus prevalence in communities and help public health officials better prepare for the future.

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.

The speed with which the coronavirus outbreaks in Asia, Europe and North America metastasized into a full-blown global pandemic — catching many world governments by surprise and with little preparation — underscores just how our world today is highly interconnected and how, in order to contain and stem the surging pandemic, temporary disconnection from the physically-networked world by cities, regions and even entire nations has become an urgent imperative.

They are “petri dishes for bacteria and carriers of harmful pathogens,” read one warning from a plastics industry group. They are “virus-laden.”

It’s pretty, sports feathery leaves resembling a carrot plant and bright yellow globes. It has an aroma that has been described as pungent, medicinal or astringent, and not even goats will consume it. It grows like a weed and, left unchecked, it could destroy much of the desert landscape it blankets.

A new study reveals that plants and animals are remarkably similar in their responses to changing environmental conditions across the globe, which may help explain how they are distributed today and how they will respond to climate change in the future.

While most of us are aware by now that coronavirus will not trigger a worldwide toilet paper shortage, that still doesn't mean TP's by any means easy to come by on store shelves.

Emissions of hazardous air pollutants from Asarco’s Hayden smelter, about 70 miles north of Tucson, led to an EPA dust control plan.