UNICEF

Everyone has diarrhea from time to time. For most, it's often no more than an inconvenience. But with the right mix of toxic circumstances, it can prove deadly.

Altogether, some 2 billion children worldwide are breathing air that has been deemed a "long term hazard," a report finds. Pollution contributes to around 600,000 deaths annually of kids under age 5.

The Category 4 storm dumped rain on southwestern Haiti on Tuesday morning and lashed the island with maximum sustained winds of up to 145 mph. The hurricane is continuing north toward Cuba.

The number of malnourished people in northeastern Nigeria could be as hlgh as half a million. Boko Haram shoulders much of the blame.

The U.N. is calling for a humanitarian cease-fire to allow repairs to water and electrical systems. Taps in Aleppo have been dry for eight of the past nine days.

The boy's obvious glee at wearing a plastic-bag shirt bearing the number 10 won him many fans. Soccer superstar Lionel Messi was evidently one of them.

And 60 million of the cases are in Indonesia, which was added to the survey for the first time — evidence that FGM goes far beyond Africa and the Middle East.