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Jeffrey Silvertooth, PhD, addresses people who are learning more about agriculture.

Group Helps Grow Interest in Agriculture, Gardening and Nutrition

Cooperative Extension offers many programs in Arizona.

Woodpeckers are only one of the local species of birds that nest during the month of March.

It's Not Just for the Birds

Tucson Audubon Society's New Executive Director

Nabhan encourages using local food sources such as mesquite trees in the Sonoran desert.

MacArthur Fellow Gary Paul Nabhan

Scientist, food activist and writer raises awareness and enthusiam about plants, food, and a healthy environment.

Insect Experts Report Active Season of Africanized Honeybees in Arizona

Abundant blooms are providing growing opportunities for the aggressive bees.

Buffelgrass is an invader species

A War On Grass

Residents in southern Arizona are fighting an invasive, resilient species that threatens the Sonoran Desert way of life.

Shawnee Riplog-Peterson, curator of mammology and ornithology at the Arizona-Sonora Desert Museum, discusses the multi-state, binational breeding program involving bighorn sheep.

Plans to Use Helicopters in Wilderness Areas Worries Conservationists

Arizona Game and Fish wants the aircraft to manage bighorn sheep.

We talk to Teresa Lappin, Member of the Tucson Amateur Astronomy Association, and Robert Gilroy, President  of the Tucson Amateur Astronomy Association, about their organization's history, goals and projects.

Friends of Stars, Skies in S. AZ

Tucson Amateur Astronomy Association is celebrating 60 years in the community; they are connected to all things astronomy.

A time lapse photograph of light pollution from Tucson reaching the Picacho Peak night sky.

Scientists: Darkness Harder to Find Due to Overpopulation

Use of artificial lights is increasing around the world; experts say tens of millions of people have never experiences truly dark skies.

Here we have the exterior of Biosphere 2 which is illuminated by a beautiful, golden sunlight.

AZ Illustrated Nature: Staying Cool in the Summer Heat

Learn about way to see nature indoors.

Ancient Signs of Intelligent Life

Visit some petroglyph sites in the Tucson Mountains with guide Allen Dart, the executive director of The Old Pueblo Archaeology Center.

The Arizona Board of Regents recently recognized four University of Arizona professors for their work and accomplishments, and this week we have been introducing you to each of these exemplary educators. Tonight we meet Distinguished Professor Eduardo Saez in the Department of Chemical and Environmental Engineering.

Distinguished Professor: Eduardo Saéz, Chemical/Environmental Engineering

Research in wind-blown dust, oxidation lead his work

We speak with superintendent of Saguaro National Park, Darla Sidles (left) and Manzo Elementary counselor, Moses Thompson (right) about the Bio Blitz which aims to count all the living species in the park.

Readying for BioBlitz in Tucson

Saguaro National Park officials prepare to count all creatures great and small

A Tour of Kartchner Caverns with Gary Tenen

The cave's co-discoverer revisits Kartchner often, and finds it still amazes him 40 years later. A tireless evangelist for the cave he still refers to as "Xanadu", Gary Tenen invited Mark Duggan to accompany him on a recent trip underground.

CEDO Celebrates 30 Years Of Conservation

Center studies habitats and cultures of the Sonoran Desert and Sea of Cortez region.

Arizona's Condor Recovery Program A Success So Far

A recent release of four of the endangered birds highlights the effort to reintroduce the magnificent birds of prey.

Condor Release Program Continues This Weekend

Four of the endangered birds will be released from captivity into the wild Saturday.

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