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Justin Schmidt, Adjunct Scientist with the University of Arizona Department of Entomology, handles one of his many stinging insects which he uses to develop the Schmidt Sting Pain Index.

AZ Sky Island Region: One of Most Diverse in US

Home to a variety of organisms, such as beetles, scorpions and crickets.

Bruce Tabashnik, Head of the University of Arizona Department of Entomology, discusses how pests are adapting to GMO plants and what we can lean from these quickly adaptable pests.

GMOs: Safe, Productive for Protecting Crops

They are resistant to pests, protect yields from harmful insects, and safe to humans.

View of the Yarnell Hill Fire south of Prescott. The 8,400-acre fire left 18 hotshot firefighters dead.

Yarnell Residents Expected to Return Home Monday

Nearly 130 homes, structures were destroyed; 19 firefighters died in the deadly fire.

Our Great Outdoors

Discussing monsoon rains in the month of July, season brings a change of pace to the desert.

Our state's economic recession has had a big impact on organizations like The Humane Society of Southern Arizona. They now have to work harder to find the funding they need to deal with the ever-growing population of stray, abandoned, and abused animals.

Number of Stray, Runaway Animals Rises in July

While weather may be the main cause, Fourth of July celebrations also have a role.

Monsoon rain is a common Tucson attraction during the month of July.

Monsoon Causes Flooding in Flagstaff

Nearly 1 inch of rain falls in 15 minutes; more over 3-hour span, plus big hailstones.

Nearly 130 Homes, Structures Destroyed in Yarnell Fire

Earlier estimates ranged from 50 to 250, officials obtained better number after getting a closer look at the scene.

Visitors travel up and down Mt. Lemmon highway which leads to the top of this popular "sky island", one of many in Southern Arizona.

Mt. Lemmon Fees to Change Starting July 4

Recreation area will charge visitors in 11 individual sites instead of as a whole.

Yarnell Continues to Honor 19 Fallen in Wildfire

A procession in an Arizona highway; a ritual for perished firefighters during an annual rodeo contest.

Executive Director of National Fallen Firefighters Visiting Prescott

Foundation is collecting donations to aid families of the 19 dead in Yarnell fire.

Progress Marked on Deadly AZ Wildfire

Yarnell Hill blaze killed 19 hotshot firefighters Sunday; still out of control, but containment beginning.

Two chefs make ice cream using liquid nitrogen.

Scientific Recipes

Chefs from Downtown Kitchen + Cocktails demonstrate how to cook with liquid nitrogen, dry ice, and nitrous oxide.

A physicist explains how it is possible to cook with magnets.

Cooking with Magnets

Electro magnetic induction used to heat food.

Rosemont Copper Draft Statement Issued by Forest Service

Clock starts on 30-day window to finalize federal decision on permitting for open-pit mine.

The tenth anniversary of the Aspen Fire on Mt. Lemmon; what does the mountain look like now, how is it recovering, concerns for the future

Mount Lemmon Fire 50% Contained, at 240 Acres

Lightning-caused blaze quelled with help of monsoon rains as it burned near Molino Basin

Deadly Wildfire Continues Out of Control

Blaze that killed 19 firefighters has 'high' potential for growing beyond its 8,400 acres, officials say.

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