A video from NASA shows how air pollution moves around the world. So what happens when emissions from Asia blow across the Pacific Ocean to North America?
The message purporting to be from the Nigerian extremist group was posted to Twitter pledging to follow the Caliph and to obey ISIS "in times of difficulty and prosperity."
A total of five individuals are being arraigned in a court in Moscow for last week's murder of Boris Nemtsov, a fierce critic of President Vladimir Putin.
To mark International Women's Day, the Vatican is opening its doors to a group of women pushing for a greater role in the Catholic Church. The organizers hope to raise issues of church inequality.
Nicolas Maduro is expelling most U.S. diplomats and demanding Americans secure visas to enter the country. Critics say it's an effort to draw attention from the nation's economic meltdown.
The keynote speaker at the demonstration in Tel Aviv's Rabin Square was given by ex-Mossad chief Meir Dagan, who accused the prime minister of causing great "strategic damage" to Israel.
In India, many widows largely vanish from mainstream society as dictated by tradition. But when it comes to Holi, the spring festival of colors, some widows come out to join the celebration.
A flood of refugees in Germany has strained resources, particularly housing. A website has signed up hundreds of Germans willing to have the newcomers come and live with them.