The U.S. will deny Mexico's non-treaty request for a special delivery channel for Colorado River water to be delivered to Tijuana,' the Bureau of Western Hemisphere Affairs said.

The deep roots of Earth's oldest continents have long been thought to be unshakable. But a new seismic discovery suggests that even these stable landmasses can change. Beneath the center of North ...

Despite being tied together beneath the surface, these regions diverge sharply above it. Iceland and the Azores are ...