Gov. Newsom has placed most of the state under a drought emergency, which could leave communities struggling with agricultural pollution without drinking water.

Tucson's ambitious tree planting goal aims to improve the health of residents, wildlife, and the watershed.

Through partnerships and exchanges, the community is ensuring that its members have long-term access to their own resources while helping solve broader water supply problems.

While it may seem that much of the world has been locked down during the past pandemic year, more than 80 million people are currently on the move – unwillingly.

Years after a lengthy drought, some southeastern Australia rivers show no signs of recovering.

A global water crisis has companies and cities reusing the condensation from air conditioners to water plants, flush toilets and in one case, brew beer.

University of Arizona researchers released a new report of how the COVID-19 pandemic has affected the food system right here in Tucson.

California and partners will launch two satellites by 2023 to spot and monitor plumes of carbon dioxide (CO2) and methane – with dozen more to follow if all goes right. The elimination of these planet-warming greenhouse gases is essential to curbing climate change.

Marc Johnson saw trouble in the water.

Researchers say climate change is posing significant challenges for farmers across the country and could have an impact on food production in years to come.