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It's been one of Brazil's most hotly contested presidential races in a generation. As expected incumbent Dilma Rousseff won, but not by enough to avoid a runoff later in the month.

The area of land no longer suitable for farming because of salt degradation is rising quickly. Scientists argue the private sector should help fund efforts to reverse it since it relies on the crops.

The racing world is still in shock after a car driven by NASCAR's Tony Stewart struck and killed a 20-year-old driver during a dirt track race Saturday. David Greene talks to Nate Ryan of USA Today.

Conflict in oil-producing regions usually sends oil prices higher. But the cost of oil has actually dropped, despite turmoil in the Middle East. Economists say it's a matter of supply and demand.

The Northeast Organic Farming Association of New York has issued a challenge for the month of September: eat as locally and organically as possible to…

Iran's President Hassan Rouhani told the U.N. that the solution to the problem of ISIS now must involve the region. He also said resolving the Iran nuclear issue could lead to greater cooperation.

A British Army private died of dysentery 99 years ago. A sample of the bug that killed him may help researchers develop a vaccine for this antibiotic-resistant disease, a top killer of young kids.

Greece's radical left Syriza party is the first anti-austerity party to win elections in Europe, throwing into doubt whether the troubled country stays the course on an international austerity plan.

This weekend's playoff game between the Green Bay Packers and the Dallas Cowboys is being billed as the second "Ice Bowl." The 1967 game in Green Bay was one of the coldest football games ever played.

California health officials say more than 4 dozen cases of measles have been diagnosed in the state — a result of an outbreak that started at Disneyland. Most who got sick were not vaccinated.