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Shazia Khan’s mission is to bring solar energy to people with no access to electric utilities.

Jeff Schacher knew that restaurants waste food. And that people are hungry. So he invented a tech-savvy way to rescue millions of meals.

For activist Bryan Parras, a native of Houston’s refinery-filled east side, the personal is very much the political.

Nick Marx of Wildlife Alliance works hand in hand with the government to crack down on the country’s illegal animal trade.

By following hundreds of children from the womb through adolescence, Dr. Frederica Perera has become a public-health superhero.

Celebrating America’s most influential leaders in the sustainable food movement

A Texas farmer is bucking tradition by putting soil health above all else. The result? Water-retaining, nutrient-rich pay dirt.

Starchitect Jeanne Gang wants to stop pollution and save the Great Lakes from invasive species. Her solution is simpler than you'd think.

Farmer Russ Kremer caught a drug-resistant infection from his own pigs. Now he's raising them right.

Molly Rockamann's 14-acre plot in suburban Missouri could be a model for the nation.