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Studies warn that climate change will threaten corn production in coming decades. Meanwhile, farmers are experimenting with new planting methods in hopes of slowing soil erosion from torrential rains.

Scan the barcode of different products and the app will tell you whether the company is seen as leaning Republican, Democratic or Other. The app is called BuyPartisan.

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.

Colorado's governor expected to take in $100 million. In the fiscal year that just ended, the marijuana tax brought in $12 million. Many smokers buy medical marijuana which is taxed at a lower rate.

Israel says rockets were fired from Gaza just before the last three-day truce was due to end. Israel responded with airstrikes.

The Vatican hasn't had formal relations with China since 1949, when the communists took charge. Pope Francis is flying to South Korea today for a five-day visit.

Monica Potts reflects on her time reviewing civilian complaints about encounters with the NYPD, in light of several high-profile, videotaped confrontations this summer between officers and civilians.

Iranian Maryam Mirzakhani, a professor at Stanford, was among four winners of the Fields Medal. She said she hopes the win "encourages young female scientists and mathematicians."

The condor is tied to the bull's back and they fight it out in an arena. Many Peruvians say it's an important tradition. Conservationists call it another threat to a giant bird already at risk.

Researchers say that in countries where clean water and soap are plentiful, there may be no additional benefit from installing sanitizer dispensers in classrooms.