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Fracking is a way of bringing up natural gas by pumping water and chemicals into the ground. Germany's powerful beer industry is worried that fracking would pollute groundwater.

Scientists say climate change could increase pests and weeds, lengthen growing seasons and turn dry soil to dust. Farmers are already on the offensive, adopting no-till cropping methods to conserve water and experimenting with different seeds. And scientists are using a technique called gene silencing to develop new crops--without tinkering with the plants' DNA.

Smartphones, tablets and computers could help seniors stay connected to their communities and families. But a hefty price tag, steep learning curves, and designs meant for younger eyes and hands could keep some older adults from logging on. Guests discuss the best ways for seniors to tackle new technology, and how devices can be adapted to accommodate older users.

Melissa Block talks to Jeff Semple of the CBC about the video that appears to show Toronto Mayor Rob Ford smoking crack cocaine.

Julie Delpy and Ethan Hawke return for the third in Richard Linklater's loosely peerless Before series, and they've never been more persuasive — nor has the storytelling. (Recommended)

Bill Kurtis reads three news-related limericks: The Pale Diet, Folgers of Maine, A Fair Perspective.

When Raymond Sokolov began writing about food, it was considered a specialty portfolio. Today, celebrity chefs abound in the U.S. and Britain, with cookbooks, TV shows and groupies. Host Scott Simon speaks with Sokolov about his new book, Steal the Menu: A Memoir of Forty Years in Food.

Before her death in 1973, Pearl S. Buck wrote one final novel. But The Eternal Wonder languished in a Texas storage unit for decades until its discovery last fall.

Alex Zhang Hungtai is a musician who has spent his life drifting from home to home. His parents were children of communist China, and since setting out, he's lived in places as far-flung as Honolulu, Montreal and most recently, Berlin.

The heart of Tornado Alley is home to one of the fastest-growing Latino populations in the country. After last week's devastating twister, the community faces some unique challenges — including protecting vital documents and overcoming the fear of asking for help.