Terry Gross

Frank Tracy Griswold III, the 25th presiding bishop and primate of the U.S. Episcopal Church, is ending his nine-year term later this year. His replacement — a woman — has just been named. The Episcopal Church has been divided in recent years over the ordination of gay bishops.

Dave Alvin is best known for his work in the Blasters and X, as well as his solo career. His new CD West of the West is a tribute to California songwriters, and features Alvin performing songs by Jerry Garcia, Tom Waits, Brian Wilson, Merle Haggard and others.

Dr. Paul Epstein is a physician in Boston, and the associate director of the Center for Health and the Global Environment at Harvard Medical School. He's created a niche as an eco-physician, exploring the link between increased illness and global warming. Illnesses such as heatstroke, asthma and allergies are the more obvious outcomes of a warmer and more polluted planet, but Epstein says an increase in infectious diseases such as malaria and West Nile virus may also be linked to the greenhouse effect.