Small technology, big questions

Manipulating matter at the molecular level opens amazing opportunities for new medicines and materials, But these materials also create potential risks to health and the environment. Jeff Young looks at nanosilver products already on store shelves.

Arts, Culture & Media

Patient and Portraitist

David Welch blogs about living with brain cancer. On his site, you'll find a section called "Tumor Art" with a series of striking portraits of him in different stages of treatment, by the artist Rosemary Feit Covey. Karen Sosnoski talked to Welch and Feit Covey about their unlikely collaboration.


Sustaining life

Preventing species extinction isn't just good for the planet, it's also good for our health. Aaron Bernstein and Eric Chivian, co-editors of 'Sustaining Life: How Human Health Depends on Biodiversity,' talk with Living on Earth.

Health & Medicine

Health disparities

The state of health care and the disproportionate number of people, mostly of color, who get sick or die from disease or chronic illness.

Arts, Culture & Media

On the trail of the hot tomato

Nearly two months have passed since an outbreak of salmonella in tomatoes, leaving consumers uneasy and the U.S. Food and Drug Administration scrambling to find the source of the contamination. FDA field investigators are the agricultural detectives on the case. Guest: Christine Humphrey, former FDA investigator.


Poverty and dirty diesel

It's been an intractable problem - the dirtiest diesel trucks are often owned by drivers who can't afford to replace or even maintain them. But the Sea Port of Los Angeles thinks it has a solution. Living on Earth's Ingrid Lobet reports.

Business, Economics and Jobs

The end of food

The signs are all around us: salmonella outbreaks, riots over food shortages, fears over mad cow disease, water shortages, skyrocketing global food prices. These are portents for the end of easily accessible food. Paul Roberts, author of The End of Food and The End of Oil sees the potential cataclysm ahead.