After 244 million gallons of sewage spilled into the Potomac, attention turned to Baltimore and other cities struggling with failing sewer systems.

With rising tuition costs and fierce competition for limited white-collar jobs, many young Nigerians are discovering that a university degree is not the only route to financial success.

Arizona regulators voted this week to scrap the state’s renewable energy mandate. The rule required utilities to get 15 percent of their power from renewable sources by 2025.