Dan Charles

Dan Charles is NPR's food and agriculture correspondent.

Primarily responsible for covering farming and the food industry, Charles focuses on the stories of culture, business, and the science behind what arrives on your dinner plate.

This is his second time working for NPR; from 1993 to 1999, Charles was a technology correspondent at NPR. He returned in 2011.

During his time away from NPR, Charles was an independent writer and radio producer and occasionally filled in at NPR on the Science and National desks, and at Weekend Edition. Over the course of his career Charles has reported on software engineers in India, fertilizer use in China, dengue fever in Peru, alternative medicine in Germany, and efforts to turn around a troubled school in Washington, DC.

In 2009-2010, he taught journalism in Ukraine through the Fulbright program. He has been guest researcher at the Institute for Peace Research and Security Policy at the University of Hamburg, Germany, and a Knight Science Journalism fellow at the Massachusetts Institute of Technology.

From 1990 to 1993, Charles was a U.S. correspondent for New Scientist, a major British science magazine.

The author of two books, Charles wrote Master Mind: The Rise and Fall of Fritz Haber, The Nobel Laureate Who Launched the Age of Chemical Warfare (Ecco, 2005) and Lords of the Harvest: Biotech, Big Money, and the Future of Food (Perseus, 2001) about the making of genetically engineered crops.

Charles graduated magna cum laude from American University with a degree in economics and international affairs. After graduation Charles spent a year studying in Bonn, which was then part of West Germany, through the German Academic Exchange Service.

In northeastern Kansas, there's an open-air ecological laboratory called Konza Prairie. Scientists like Ellen Welti go there to study plants, insects, and big animals. "In the spring it has a lot of beautiful flowers, it has bison; everybody should go visit and check it out for themselves," says Welti, who is currently a post-doctoral researcher at the University of Oklahoma.

In this landscape, grasshoppers play a crucial role. They eat the grass; birds eat them.

Parker Smith grows corn and soybeans on land near Champaign, Ill., together with his father and uncle. But Smith Farms doesn't own most of the land it uses. "About 75 percent of what we farm is rented ground," he says.

This is common. Across the Midwest, about half of all the farmland is owned by landlords who live somewhere else. Farmers compete to rent that land. "There's only so much ground, and most of the farmers out there want more, so obviously it gets pretty competitive," Smith says.

Every summer for the past three years, the phones have been ringing like crazy in the Office of the Indiana State Chemist. Farmers and homeowners were calling, complaining that their soybean fields or tomato plants looked sick, with curled-up leaves. They suspected pesticides from nearby farms — a kind of chemical hit-and-run.

It was up to investigators like Andy Roth to find the true culprit.

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Let's say you want to help stop global warming and kick your gasoline habit.

You buy an electric car. And then you go to charge it up and you think: Wait, where's this electricity coming from?

Nationwide, 60% of it comes from power plants burning coal and natural gas, belching carbon dioxide. And across the country, energy experts are trying to figure out what might persuade these electric utilities to change.

The company Calyxt, just outside St. Paul, Minn., wanted to make a new kind of soybean, with oil that's a little healthier — more like olive oil.

As it happens, some wild relatives of soybeans already produce seeds with such "high oleic" oil — high in monounsaturated fat. It's because a few of their genes have particular mutations, making them slightly different from the typical soybeans that farmers grow.

This week, the governor of Connecticut proposed a statewide tax on sugar-sweetened drinks. Several cities have already enacted such soda taxes to raise money and fight obesity. And there's new evidence suggesting that these taxes do work — although sometimes not as well as hoped.

You probably don't think of cotton as food.

There's a good reason for that. Farmers grow it mostly for the fluffy white fibers that turn into T-shirts or sheets. Cotton plants do produce seeds, but those seeds are poisonous, at least to humans.

This week, though,the U.S. Department of Agriculture approved a new kind of cotton — one that's been genetically engineered so that the seeds are safe to eat.

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