With more than 2 million people, the sister cities of El Paso and Ciudad Juárez make up the second largest binational urban center on the U.S.-Mexico border. Here, the border is far more than a line on a map.
The story we’ve all been told about the demise of Easter Island’s culture is flat-out wrong. Here’s why.
As climate change makes some hurricanes more intense, social inequalities are cast in sharp relief.
Surging tides will submerge thousands of ancient and historic places along the east coast of the U.S.
Tree-ring dating helps answer questions about pre-Columbian life in the Mesa Verde region.
Climate change skeptics point to ice and snow to seed doubt about global warming—but visible evidence of the changing climate is all around us.