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Grijalva Speaks Against New Mining Resolution

It loosens restriction on mountaintop mining companies, allowing them to fill mountain valleys that act as waterways; passed U.S. House 229-192.

Center Responds to Possible Worsening of Global Warming

A U.N. weather agency says there may be irreversible damage to the planet; a new Tucson center drafting plans for how people could survive.

Prickly Park Showcases Variety of Vegetation in Sonoran Desert

Located near West River Road and North Camino del la Tierra, the park is home to almost 3,000 native and non-native plants.

The Colorado River dies a slow death in Mexico. The river's delta, formerly lush, is now the mostly barren desert seen here. The river no longer reaches the Sea of Cortez.

Morelos Dam Water Begins Flowing Into CO River Delta

Floodgates were opened Sunday, part of a pilot project to release water from the Colorado River into its parched delta in Baja California, Mexico.

An old, broken down ironwood tree.

Locals Explore Ironwood Forest Natl Monument

Located in Tucson, place named after trees native to the area; executive director recommends people to visit.

BIll Would Allow Livestock Owners to Shoot Fed Protected Wolves

Arizona Senate committee approved legislation that would grant ranchers permission to kill Mexican gray wolves if they prey on their animals.

Pima County Has Met 50% of Sustainability Goals, Report says

The Board of Supervisors adopted the five-year plan in 2008; goals included favoring eco-friendly products, limiting county's carbon footprint.

As Fire Season Approaches, Yarnell Tragedy Examined

"For all of the sort of graphic and horrible qualities of the fire that made it so compelling to the general public, I don't think it taught the fire community anything," argues Stephen Pyne, fire historian at ASU.

Pictured here, the Santa Cruz River flows from the highlands in Mexico down to the south eastern parts of Arizona.

AZ Water Experts Working with MX Counterparts on Preservation

Arizona and Sonora, Mexico share water from the San Pedro and Santa Cruz Rivers; collaborating to save resources.

16th Bighorn Sheep Dead, Victim of Mountain Lion, Officials Say

Arizona Game & Fish says dead ewe discovered Sunday; three of the felines have been killed at department's direction for preying on sheep.

The San Pedro River flows through Sierra Vista.

Sierra Vista Aims to Conserve Water, Save San Pedro River

Town trying to lower water use because if source dries up heart of community's economy, Fort Huachuca, could close.

biosphere 2 segment image

Biosphere 2 Raising Money for Sea of Cortez Small Scale Replica

The researching facility has until April 22 to raise $100K to turn a 9,000-square-foot tank into living model of Gulf of California's oceanic environment.

We sit down with James E. Cook, Executive Director of the Western National Parks Association, and Maya Wallace, Winner of the National Parks Essay Contest, to discuss the National Parks Association's upcoming events.

Event Honors Natl Parks Conservation Efforts

The Western National Parks Association awarding 3 people at their second annual dinner, including retired U.S. Supreme Court Justice Sandra Day O'Connor.

An aquaponics garden.

S. AZ Entrepreneurs Going Green with Increasingly Popular Method

Business owners are promoting an ancient system as a new way to provide food; aquaponics combines fish and plants to grow food.

Water levels at the Colorado River basin.

AZ Week: Prevention, Solutions Amid Possible Water Crisis

Growing population demands more, theories of CO River drought in near future, drought has experts debating plans.

All 15 AZ Counties Designated Areas of Drought

Declaration makes farmers, ranchers eligible for low-interest emergency loans; based on agricultural production losses.

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