This 47 minute radio broadcast discusses how some of the drugs we take, including Prozac and birth control medications, are showing up in aquatic animals such as fish and frogs. The show examines how these drugs are ending up in aquatic ecosystems; what effects they might have on animals that live in and around the water, including the feminization of fish; whether humans are endangered by eating ... Full description.

This 48 minute radio broadcast discusses different approaches to protecting biodiversity on Earth and an ambitious project that aims to take an inventory of all the species on the planet. While many scientists recognize the importance of efforts to protect biodiversity, there are many different possible approaches - so the best route is not always clear. Hampering efforts, too, is the fact that scientists ... Full description.

This 47 minute radio broadcast discusses a fossil found in Ethiopia in 2002 that may help fill out our family tree. The million-year-old bone fragments might help explain the relationship between what some scientists think are different branches of Homo erectus found in Asia and Africa. The last part of the broadcast features discussion with geologist and author Peter Ward and artist Alexis Rockman ... Full description.

This radio broadcast discusses a United States Geological Survey study of 139 streams in thirty states that detected dozens of drugs, hormones, and household chemicals in the waterways. Some of these pollutants appear to have passed through water treatment facilities (which are primarily designed to target bacterial contaminants) unscathed. The show discusses what scientists know about how these chemicals ... Full description.

This radio broadcast from April 26, 2002 examines the far-ranging problem of air pollution, the competing policy proposals in Washington, and how policy proposals compared to clean air regulations as they existed in 2002. President Bush's Clear Skies Act changes the way in which emissions of certain air pollutants, such as nitrogen oxides, sulfur dioxide and mercury, are regulated. Other topics of ... Full description.

This 48 minute radio broadcast is a discussion of agriculture and sustainability - how can people worldwide ensure that there is plenty of food now, as well as in years to come? Will it take changes in production methods? Diet? Attitudes? There is discussion of how the population of the future will be increasingly urban; what the results of the Green Revolution were; how providing meat is more of ... Full description.

This radio broadcast features an interview with renowned primatologist Jane Goodall about her life, work, and goals. There is also discussion about an IMAX movie featuring her work with chimpanzees in the Gombe region of Africa. Goodall explains how she named the chimpanzees and got to know their personalities; how she made her first discoveries; and how she discovered the dark side of chimpanzees, ... Full description.

This 48 minute radio broadcast contains discussion with two botanists, H. Marc Cathey and David Francko, about how climate changes are affecting our gardens. Warmer temperatures are now allowing gardeners to grow many plants that did not previously survive in certain locations. South American flowers are sprouting in Brooklyn, crape myrtles are flourishing in the Northeast, and a Chinese tulip bloomed ... Full description.

This 47 minute radio broadcast discusses new planetarium shows and backyard astronomy. Planetariums are increasingly going digital, replacing those quaint sky tours of our elementary school field trips with slick productions that blend art and science into fantastic tours of the universe. The radio broadcast explains how to look at the real night sky and how amateur astronomers are contributing to ... Full description.

This 48 minute radio broadcast discusses the history of science from around the globe, and looks at the ancient roots of modern scientific thought. The math and science of the ancient Greeks as well as some ancient scientific thinkers, including Aristotle and Ptolemy, are well known. But what about people and ideas from the rest of the world? In Asia, Egypt and the Middle East, scientific thinkers ... Full description.