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The frequency of severe storms is focusing new scrutiny on whether to build in coastal, flood-prone areas. That's a question facing city leaders in Norwalk, Conn., a city on Long Island Sound. They're hoping to upgrade a public housing project using federal dollars.

This doesn't look like your trusty potato battery: a prototype device made by scientists at the University of Maryland uses wood fibers coated with carbon nanotubes to create an electric current.

In 2011, California listed 4-MEI, the chemical that Coke and Pepsi used to obtain caramel coloring for their colas, as a carcinogen. Both sodas have been reformulated for sale in the state — but tests show 4-MEI is still common in Pepsi colas sold elsewhere.

The political messaging of failure isn't easy. Just ask New York Sen. Charles Schumer, who called the GOP's rejection of his immigration bill "encouraging."

Scientists have completed the first long-term study of children allergic to milk who were treated with an experimental therapy based on giving them small doses of the very food that made them sick. Three to five years after the treatment, some kids remained free of allergic symptoms. But for others, severe reactions to milk had resumed.

Anderson was the first woman to lead a Minnesota Indian tribe, and led efforts to secure tribal hunting and fishing rights on Lake Mille Lacs. She died Saturday at age 81 of natural causes.

Military chief Gen. Abdel-Fattah al-Sisi says that Mohammed Morsi is out as president and the country's constitution has been suspended. Egypt's chief justice will hold power during the transitional period and set a date for early presidential elections.

U.S. and EU officials begin talks Monday on a free-trade deal that could create thousands of jobs and billions of dollars in new trade. But there are deep-seated differences that may make it difficult to reach an accord. Among the most contentious: agriculture and whether genetically modified crops grown in the U.S. will be accepted in Europe.

The story of Onondaga Lake including all of its blemishes will be on display for visitors to this year’s New York State Fair. A new three-thousand square…

Can technology help cities become more efficient and sustainable? Or does the drive toward a new kind of "technopolis" raise concerns about privacy, equity and cost? Please join the NPR Cities Project for a Twitter conversation about technology and urban innovation.