Under lockdown in a hotel, members of a plant ecology course continue to work and study as they seek a way to return home.

During the COVID-19 pandemic, one problem that has been discussed that could aggravate the situation is the ban on single-use plastic bags by state and local governments that force shoppers to use reusable bags.

A growing number of studies show that warming temperatures are increasing mortality in creatures ranging from birds in the Mojave Desert, to mammals in Australia, to bumblebees in North America. Researchers warn that heat stress could become a major factor in future extinctions.

In this episode, dendrochonologist Valerie Trouet of the Laboratory of Tree-Ring Research at the University of Arizona talks with Anna and Leila about her new book, Tree Story: The History of the World Written in Rings. She talks about the fascinating science of tree-rings and what they can tell us climate patterns and ecosystems. 

Tumamoc Hill will close to the public starting Wednesday in response to the coronavirus pandemic, the director of Tumamoc said. 

A symbol of life, an ancient sundial or just firewood? Tree-ring scientists trace the origin of a tree log unearthed almost a century ago.

Trees have stories to tell. We all learn when we’re kids that reading tree rings shows us how old a tree is. But expert Valerie Trouet says they can tell us so much more than that.

One of the oldest domestic arts, dehydrating foods at home provides an easy, economical way to save surplus food for a later time and in turn, decrease agriculture waste. 

The University of Arizona Controlled Environment Agriculture Center is pleased to invite you to attend the 2020 International Meeting of the NCERA 101 Committee on Controlled Environment Technology & Use, as well as join The Controlled Environment Agriculture Center in commemorating 20 successful and productive years as we celebrate the Center’s 20th Anniversary.

Biosphere 2, a major tourism attraction north of Tucson near Oracle, suspended all public activities effective Friday, March 13, at 4 p.m., for an undetermined period of time.

A bill to remove an outdated “use it or lose it” policy in state water law is sailing through both houses at the Legislature, a sign that progress is inching forward as Arizona prepares for a drier future.