News: U.S. and World News Headlines NPR news, audio, and podcasts. Coverage of breaking stories, national and world news, politics, business, science, technology, and extended coverage of major national and world events.

Anhydrous ammonia tanks in a newly planted wheat field. Walmart has promised big cuts in emissions of greenhouse gases. To meet that goal, though, the giant retailer may have to persuade farmers to use less fertilizer. It won't be easy. TheBusman/Getty Images hide caption

toggle caption
TheBusman/Getty Images

Can Anyone, Even Walmart, Stem The Heat-Trapping Flood Of Nitrogen On Farms?

Audio will be available later today.

South Africa granted diplomatic immunity to Zimbabwean first lady Grace Mugabe after she was accused of assaulting a young woman at a Johannesburg hotel. Above, Mugabe addresses a youth rally in June. Jekesai Njikizana/AFP/Getty Images hide caption

toggle caption
Jekesai Njikizana/AFP/Getty Images

President Trump departs the White House on Aug. 14 for New York. He is giving an update on U.S. involvement in Afghanistan in an address to the nation Monday night. Nicholas Kamm/AFP/Getty Images hide caption

toggle caption
Nicholas Kamm/AFP/Getty Images

President Trump and first lady Melania Trump walk across the tarmac before boarding Air Force One at Morristown Municipal Airport Sunday to return to Washington. Pablo Martinez Monsivais/AP hide caption

toggle caption
Pablo Martinez Monsivais/AP

French forensic police officers gesture to pedestrians as they take images while searching a vehicle following a car crash in the southern Mediterranean city of Marseille on Monday. Bertrand Langlois/AFP/Getty Images hide caption

toggle caption
Bertrand Langlois/AFP/Getty Images

Damage to the port side is visible as the guided-missile destroyer USS John S. McCain steers toward Changi naval base in Singapore following a collision with the merchant vessel Alnic MC on Monday. Mass Communication Specialist 2nd Class Joshua Fulton/AP hide caption

toggle caption
Mass Communication Specialist 2nd Class Joshua Fulton/AP

A group of protesters, made up mostly of women, rally against then-Republican presidential candidate Donald Trump outside of Trump Tower in New York City on Nov. 3, 2016. Drew Angerer/Getty Images hide caption

toggle caption
Drew Angerer/Getty Images

Rosendo Gil, a family support worker with the Imperial County, Calif., home visiting program, has visited Blas Lopez and his fiancée Lluvia Padilla dozens of times since their daughter was born three years ago. Heidi de Marco/Kaiser Health News hide caption

toggle caption
Heidi de Marco/Kaiser Health News

Lillie Pete sifts the juniper ash before adding it to her blue corn mush. Laurel Morales/KJZZ hide caption

toggle caption
Laurel Morales/KJZZ

To Get Calcium, Navajos Burn Juniper Branches To Eat The Ash

  • Download
  • <iframe src="https://www.npr.org/player/embed/544191316/544953044" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

South Korean soldiers participate in an anti-terror and anti-chemical terror exercise Ulchi Freedom Guardian exercise last year. Chung Sung-Jun/Getty Images hide caption

toggle caption
Chung Sung-Jun/Getty Images

Fresh Threats From Pyongyang As Joint Military Exercise Begins

  • Download
  • <iframe src="https://www.npr.org/player/embed/544931734/544953063" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript