Today, Jan. 16, is designated for holidays honoring the Rev. Martin Luther King Jr. and World Religion Day. Here are some statistics about religion around the globe. The percentage of people in ...

Nearly a quarter-century after the U.S. launched its response to 9/11, the Pentagon continues to pursue military actions in the Middle East and in many more parts of the world than Americans may ...

A Washington Post analysis of multiple temperature data sets found numerous locations around the globe that have warmed by at least 2 degrees Celsius (3.6 degrees Fahrenheit) over the past century.