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Members of the Osage Indian Nation became very wealthy in the 1920s after oil deposits were found on their land. Then local whites began targeting the tribe. Journalist David Grann tells the story.

Half of all cars in Europe run on diesel, compared to 3 percent in the U.S. But Madrid has vowed to ban diesel vehicles by 2025, to cut air pollution. Paris and Athens have made similar pledges.

Here's your daily briefing...Storm Tax in Works: A bill aimed at increasing the amount of storm water run-off that winds up purified, stored and re-used…

Digesters convert livestock manure into electricity. Farmers can use it to power their operations or even sell some back to the grid. But some have found the technology too pricey to maintain.

In Florida, an effort is underway to remove more than million cubic feet of muck sullying the Indian River Lagoon, considered North America's most biologically diverse estuary. It's a mess.

Fundraising is underway for a new filtration system at an Arizona school for Navajo children with disabilities. Now, the water runs black and smells like rotten eggs, but is technically safe to drink.

Christenberry, who died on Monday, drew on his childhood experiences in Alabama. One of his pieces was inspired by an encounter he had with a Klansman. Originally broadcast in 1997.

After months of protests against a controversial pipeline, the Army Corps of Engineers says it will look for an alternative route for the final section of the project in North Dakota.

The Chevy Bolt can go 238 miles on a single charge and costs about $30,000, after a federal tax credit. But the clean-car industry needs government support to thrive, and that's far from certain.

New research calculates the greenhouse gas emissions involved in making bread, from wheat field to bakery. The vast majority of emissions come from one step in the process: farming.