Tucson, Arizona, opens new compost facility

The city has also partnered with the University of Arizona to offer a commercial pickup program.

U.S. Cities Are Underestimating Their Greenhouse Gas Emissions

The errors could make it more difficult for cities to meet goals for reducing their planet-warming footprint

Some Ecological Damage from Trump’s Rushed Border Wall Could Be Repaired

Conservationists urge Biden to dismantle it quickly, especially in key habitats

Arizona mining industry steps up to meet skyrocketing demand for copper

It has the highest recycling rate of any engineering metal, every child born today will use about 1,500 pounds of it, between 500 and 600 pounds of it were used to make billions of doorknobs in the United States, and the Statue of Liberty is plated with upwards of 179,000 pounds of it.

Scientists applaud President Biden’s White House science team and commitment to science

President Joe Biden’s White House science team faces cascading crises as it takes command amid COVID-19, escalating climate change and crippling public doubts about science. But scientists across the country are confident the new administration is up to the challenge, especially under the leadership of science adviser Eric Lander, the pioneer who helped map the human genome.

Analysis of Alaskan Tree Rings can Help Fine-Tune Future Climate Predictions

University of Arizona researchers read between the lines of tree rings to reconstruct exactly what happened in Alaska the year that the Laki Volcano erupted half a world away in Iceland. What they learned can help fine-tune future climate predictions.

Testing for SARS-CoV-2 in Wastewater

The University of Arizona began monitoring campus wastewater for evidence of SARS-CoV-2 in March of 2020. That August, a sample from one of their 20 on-campus dorms revealed a viral load—an indication that individuals living in that residence might be infected.1 The school tested each of the 311 residents in that dorm and found two positive cases—neither was yet exhibiting symptoms, suggesting they could have passed the virus silently throughout the student population had they not been found in time. Instead, they were isolated before they could infect others, and the school averted a wider outbreak.