At Penn State, engineers are creating a promising new energy technology. They’ve designed a microbial fuel cell, using bacteria to clean wastewater and produce electricity. From IEEE Spectrum, Glenn Zorpette reports on this new type of renewable energy.

The chairman of the House Transportation and Infrastructure Committee has proposed a sweeping, new transportation bill. The legislation would encourage private companies to build their own toll roads and pay for infrastructure with money from oil companies. The author of the 800 page-long bill, Congressmen John Mica, highlights some of the bill’s biggest proposals with host Bruce Gellerman.

The House transportation bill currently on the table cuts bicycling and walking infrastructure. Democrat Congressman Earl Blumenauer is an avid cyclist. He tells host Bruce Gellerman why he believes the bill is an assault on twenty years of progress.

Global warming will affect one of the smallest, wriggliest creatures – tapeworms. Raphaella Bennin reports.

The Hanford nuclear facility in Washington state is the largest, most complex and most expensive environmental cleanup effort in the world. USA Today’s investigative reporter, Peter Eisler, tells host Bruce Gellerman, the project is over-due, over-budget and still quite dangerous.

Media artist Bartholomaus Traubeck has figured out a way to create music from a cross section of a tree. He tells host Bruce Gellerman that he plays the tree’s rings like a record’s grooves.

For decades, several tree species have provided acoustic guitar players and makers of premium instruments with the perfect musical tone. But the world’s forests are in decline, including the trees that produce the best tonewoods. Now, as The Allegheny Front’s Ann Murray reports, some guitar manufacturers are finding ways to protect remaining tonewood forests and continue producing high-end wood instruments.