RIO DE JANEIRO (AP) — When summer heat comes to the Arara neighborhood in northern Rio, it lingers, baking the red brick and concrete that make up many of the buildings long after the sun has gone ...

Illustration by The New York Times. Photograph by Getty Images. By Max Roser Graphics by Sara Chodosh Mr. Roser is the founder of Our World in Data and a professor at the University of Oxford’s ...

Flint is the city that fights back, says Dr. Mona Hanna. She's the Flint pediatrician who raised the alarm about the city's water crisis. She's also the co-director of Rx Kids, a program that provides ...

Since 1990, the World Bank has reported estimates of the number of people worldwide that live in extreme poverty. This poverty standard is based on how the poorest countries in the world define ...