More Environment History News Stories

Water and Copper: How mining's history follows Arizona's feelings about water use in the state

Mining was Arizona's first billion-dollar industry. As we consider our state's economic drivers and their water use, we ask not only how much water goes into mining but what its aftermath does to water.

Tucson to begin returning ancestral lands to Tohono O’odham Nation

City council unanimously moved to direct the city attorney to present a plan for approval at the next council meeting.

The Buzz takes a trip down the Verde River

Meet a man who has made saving this unique waterway his life's work

NPS closes route to Quitobaquito Springs

Closure comes a day after O'odham leaders held a cross-border ceremony at the spring.

Indigenous activists arrested in demonstration against border wall construction near Quitobaquito Springs

Two O'odham protesters were arrested for impeding construction in Organ Pipe Cactus National Monument.

Planning for a future with less Colorado River water

A new book sheds light on mistakes of the past while Arizona gears up for the next round of negotiations.

Initial flow for Santa Cruz River project goes beyond expectations

The project pumping reclaimed water into a section of river near downtown saw water reach farther downriver than predicted.

UA researchers dating ancient volcanic eruption using tree rings

The tree rings can help them understand more about the explosion of a volcano thousands of years ago.

Climate Change Could Drive Vegetation Changes

Tucson-based scientist charting similar changes from Ice Age.

UA Tree-Ring Researchers Add to Climate Study

Tracked expansion of the tropics; linked it to Sonoran drought

Master Gardeners Celebrate 35 Years in Pima County

Volunteers have been "planting knowledge" since 1983.

A Helping Hand for Nature

Friends of Buenos Aires National Wildlife Refuge volunteer time and effort.

Lifeblood of the Desert: Restoration Brings New Life to Santa Cruz River

The river has supported four millennia of agriculture and growth in Tucson.

A Desert Museum for Art and History

Tucson has two different attractions with "desert museum" in their names.

Want to Learn About Native Species? Go On a Hike.

Friends of Ironwood Forest National Monument raise awareness about the site.

National Park Service Turns 99, Centennial Celebration Begins

Service oversees hundreds of parks and monuments across the country.

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