TUCSON, Ariz. (September 22, 2009) -- What kind of innovative approaches are scientists taking to help mankind protect the planet and live more sustainably? "WaveLengths: Sustainability" -- the season premiere of the science program from Arizona Public Media -- explores some of the cutting edge research scientists are using to look for solutions for more responsible use of the planet’s natural resources.

The second season of WaveLengths begins by exploring scientific innovations in the areas of biofuel production, local urban agriculture, solar energy and responsible waste management… approaches that help meet present food and energy needs without compromising the well being of future generations.

"WaveLengths: Sustainability," produced by Pam White and hosted by BIO5 Institute member Dr. Vicki Chandler, premieres Thursday, September 24 at 8:30 p.m. on PBS-HD channel 6. An encore broadcast is scheduled for Sunday, September 27 at 6:30 p.m., also on PBS-HD channel 6. The environmental innovations highlighted in "WaveLengths: Sustainability" include:

Local grower improves efficiency Most people have no idea where their food comes from, its quality, or how far it traveled to get to their plate. The high energy costs of importing produce from far away are making locally-grown foods more popular than ever. Meet two Tucson growers with a budding business on the banks of the Rillito River.

Ethanol production in Arizona Although Arizona is not known for its corn crop, it may surprise some to learn a large facility here produces enough ethanol to supply the entire state and parts of Southern California. Making ethanol fuel is a fairly easy process and uses crops such as sugarcane and corn… yet more research needs to be done to find the most energy efficient sources to make ethanol even more sustainable.

Biodiesel as sustainable energy Besides ethanol, biodiesel has an important role as an alternative fuel. Currently, Americans use almost a billion gallons of biodiesel a year. It burns cleaner than diesel and is made from natural renewable sources such as vegetable oils. WaveLengths looks at a team of researchers hoping to make biodiesel even more sustainable.

Harnessing solar energy The sun, especially in Arizona, is the most available energy source. Plants convert light from the sun into food, but man is still not completely efficient at converting light into electricity. There are several existing methods, but it’s too early to know which technology will rise as the most practical (maybe even one not yet invented!) For one researcher, finding the best way to harness solar energy is both a personal and professional quest.

Recycling to protect the planet Many believe that over time the trash in landfills will breakdown, but scientific studies have shown otherwise. In fact, researchers have found even newspapers can last for decades. If we want to protect our planet and reduce our carbon footprint, one of the most significant things we can do is recycle. WaveLengths looks at the Tucson and Pima County recycling statistics and the processes which can make a difference.

WaveLengths is in its second season as the science program from Arizona Public Media. More information on WaveLengths: Sustainability can be found on the Arizona Public Media website at www.AZPM.org

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