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.

It could be another milestone in organic food's evolution from crunchy to commercial: Wal-Mart, the king of mass retailing, is promising to "drive down organic food prices" with a new line of organic food products. The new products will be at least 25 percent cheaper than organic food that's on Wal-Mart's shelves right now.

A group of scientists and food activists is launching a campaign Thursday to change the rules that govern seeds. They're releasing 29 new varieties of crops under a new "open source pledge" that's intended to safeguard the ability of farmers, gardeners and plant breeders to share those seeds freely.

It's inspired by the example of open source software, which is freely available for anyone to use but cannot legally be converted into anyone's proprietary product.

Why hasn't fish farming taken off in the United States?

It's certainly not for lack of demand for the fish. Slowly but surely, seafood that's grown in aquaculture is taking over the seafood section at your supermarket, and the vast majority is imported. The shrimp and tilapia typically come from warm-water ponds in southeast Asia and Latin America. Farmed salmon come from big net pens in the coastal waters of Norway or Chile.

The planet's top experts on global warming released their latest predictions this week for how rising temperatures will change our lives, and in particular, what they mean for the production of food.

McDonald's made a big green splash a few months ago by announcing that it will start buying "verified sustainable" beef in 2016.

A chorus of voices responded, "What's 'verified sustainable' beef?"

As the snow melts, even in Minnesota, and daylight lingers into evening, people who like to eat with the seasons know what's coming: asparagus.

"Asparagus means the beginning of spring. It's spring!" says Nora Pouillon, chef and founder of Restaurant Nora in Washington, D.C. Later this month, she'll revise her menu, and it will certainly include asparagus with salmon, and asparagus soup.

It's an elegant vegetable, Pouillon says, and unique: "Sweet and bitter at the same time."

These days you can fly to far corners of the world and eat pretty much the same food you can get back home. There's pizza in China and sushi in Ethiopia.

A new scientific study shows that something similar is true of the crops that farmers grow. Increasingly, there's a standard global diet, and the human race is depending more and more on a handful of major crops for much of its food.

It's easy to think of "organic" and "non-GMO" as the best buddies of food. They sit comfortably beside each other in the same grocery stores — most prominently, in Whole Foods Market. Culturally, they also seem to occupy the same space. Both reject aspects of mainstream industrial agriculture.

In fact, the increasingly successful movement to eliminate genetically modified crops — GMOs — from food is turning out to be organic's false friend. The non-GMO label has become a cheaper alternative to organic.

The other morning, I found myself staring at something strange and unfamiliar: empty grocery shelves with the word "eggs" above them. The store, a Whole Foods Market in Washington, D.C., blamed, in another sign, the dearth on "increased demand for organic eggs."

This scene is unfolding in grocery stores across the country. But Whole Foods' sign wasn't telling the whole truth. Demand for organic eggs is indeed increasing, but production is also down.

The reason behind that shortfall highlights an increasingly acute problem in the organic industry.

After reading Christopher Leonard's The Meat Racket, a broadside against the contract-farming system, I decided to take a closer look at it.

I drove to North Carolina and ended up in the kind of place that supplies practically all of our chickens: a metal-sided, 500-foot-long structure near the town of Fairmont.

Christopher Leonard's new exposé on the chicken industry, The Meat Racket, doesn't devote much ink to the physical object on our plate, the chicken meat itself.

Quite possibly, you've noticed some new food labels out there, like "Not made with genetically modified ingredients" or "GMO-free." You might have seen them on boxes of Cheerios, or on chicken meat. If you've shopped at Whole Foods, that retailer says it now sells more than 3,000 products that have been certified as "non-GMO."

I love numbers. A picture may be worth a thousand words, but I think a good bar graph can be worth a thousand pictures.

But three times in the past few days, I've come across statistics in reputable-looking publications that made me stop and say, "Huh?"

I did some investigating so you don't have to. And indeed, the numbers don't quite tell the story that they purport to tell.

So here goes: My skeptical inquiry into statistics on herbicide use, soil erosion, and the production of fruits and nuts.

Starting this year, farmers across the Midwest can sign up for a service that lets big agribusiness collect data from their farms, minute by minute, as they plant and harvest their crops.

Monsanto and John Deere are offering competing versions of this service. Both are promising to mine that data for tips that will put more money in farmers' pockets.

A 26-part series on genetically modified food was not Nathanael Johnson's idea. And he didn't realize it would take six months, either.

Last year, Johnson was hired as the new food writer for Grist, a website for environmental news and opinion. Grist's editor, Scott Rosenberg, was waiting with an assignment: Dig into the controversy over GMOs.

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