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Federal Endangered Species Act Turning 40 Years Old

Law has helped Mexican gray wolf, bald eagle, six other animals native to Arizona avoid extinction.

City of Tucson Offering Christmas Tree Recycling

Nine dropoff spots where trees will be turned into wood chips available to public in new year.

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.

The 25-panel solar power system set-up of the roof of Enrique Ward's home.

Home Energy Efficiency Renovations Still Pricey for Most

Although the price of solar and other renewable energy systems have declined steadily over the years, the up-front cost usually isn’t an amount that people can just dish out.

Environmental Agencies Collaborate to Manage Land

Fish & Wildlife, Nature Conservancy hope to make more efficient use of staff, resources, allowing more prescribed burns of land to happen.

TEP's Parent Company To Be Sold

Canada's largest electric utility pays $4 billion, customers will not see changes; rates won't go up, no lay offs, UNS Energy CEO says.

Local governments are planning to extend the number and length of bicycle paths in an effort to increase ridership in our community.

Tucson Hopes to Join ‘Green Lane Project’

City looking to build bike lanes that would be separated from car traffic; turning to national group for help.

Patches of buffalo grass are being grown at the University of Arizona's School of Plant Sciences.

AZ Residents Look to Alt Types of Grass for Sustainability

Recently acquiring buffalo grass, artificial turf has been a growing trend to save water, other resources.

Justin Gallick, Animal Care Advocate for the Pima Animal Care Center, discusses pet adoptions and the shelters growing problem of over population.

Local Animal Shelter Encourages Adopting During Holiday Season

Pima Animal Care Center is overflowing with cats, dogs that need a home; organization will waive $60 adoption fee.

Cold Weather Brings Freeze Warnings

Temperatures are expected to drop near or below freezing overnight through weekend.

Tucson has a small, growing community of people who keep chickens and sell eggs, from backyard coops to schoolyard flocks that help children learn.

Raising Urban Chickens Interests Tucson Residents

City has a small but growing community of people who raise chickens in backyards; local school uses them for learning purposes.

Arizonans Speak Out on Gray Wolves Endangered List Status

Fish and Wildlife meeting offers those who live near Mexican gray wolves a chance to comment.

Experts: Building Preservation Good Environmentally, Culturally

A look at the Historic Y, what's become; members of the Tucson Historic Preservation Foundation discuss restoring historic buildings.

Event Recycles Hundreds of Gallons of Old Cooking Oil

Green Friday takes place the day after Thanksgiving; people can drop off used oil which can then also be converted into biodiesel.

Marcia Lincoln, hobby poultry farmer, discusses how to produce healthier and happier birds and how she is working to protect heirloom turkey varieties.

Wild Turkeys Making a Comeback in Southern AZ

After disappearing from area in 1920s, Game and Fish says there are about 1,000 Gould's in southeastern Arizona.

Alan Weisman, author of Countdown, a book that explores the challenges of a growing population.

Journalist, Author Addresses Planet Overpopulation in Book

Alan Weisman discusses the negative effects people have on nature in "Countdown."

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