Reports say three of those arrested were involved in getting the mining project licensed, and two were consultants with a company that certified the dam for safety.
Rice farmers in Nepal are improving yields by more than 50 percent using a technique that sows fewer plants per acre but produces more rice per plant. It also uses less water.
A 19-year drought has created a crisis for states along the Colorado River. They face a deadline this week to come up with a deal to share water, or the federal government says it will step in.
The dam that collapsed last week held more than 3 billion gallons of mud and mine waste. A mine worker says he heard a loud sound — and when he turned, he saw a "mountain of mud" sweeping toward him.
Island officials will have discretion to spend the federal money as they see fit. But some worry the government's plans will leave local communities behind.
In 1969, oil from an offshore well left beaches in Santa Barbara, Calif., coated with crude and littered with dead birds. The country's reaction helped create the modern environmental movement.
Less than a half-ounce of red meat per day: That's how much a new report says we should eat to meet nutritional needs and help save the planet. Americans on average now eat four to six times as much.