The CDC has confirmed more than 4,000 cases of measles this year as the country grapples with the largest outbreak of the highly infectious virus in 35 years. Nearly a fifth of cases comprise children under the age of five, and 95% are among unvaccinated people. Amna Nawaz spoke with Dr. Evan Shirey, a pediatric infectious disease doctor based in Pennsylvania.

Chemical fertilizers and animal waste contain nitrates and phosphorus that can get washed with rain or snowmelt into the state's rivers. That affects Iowa's more liberal urban centers which rely on rivers and lakes for drinking water.

Record high temperatures this year forced European wine producers to harvest grapes much earlier than usual. French wineries fear it will lead to the worst season in 30 years. But Nordic newcomers to the world of wine are toasting what they believe will be a vintage harvest, thanks, in no small part, to climate change. Special correspondent Malcolm Brabant reports from Sweden.

Several meteorological factors have come together to supercharge the Pacific, chief among them the El Niño.

French Finance Minister Roland Lescure told Parliament on Tuesday that about 700 of the country's 10,000 supermarkets were affected.

For many Arizona voters, the top concern heading into the midterms isn't inflation, immigration or education. It's water. With the state gripped by prolonged drought, candidates are facing growing questions about how to secure its water future. Stephanie Sy reports for our series, Tipping Point.

Four men were given preliminary charges in the investigation into the Sept. 8 theft from the small Renoir Museum in the town of Cagnes-sur-Mer on the French Riviera.