1,500 Mexican National Guard arrive in Sonora to reinforce border with Arizona
About 1,500 members of Mexico’s National Guard have been deployed to Sonora's border with Arizona as part of Operativo ...
'Geologic gift': One of world's largest aquifers is buried below Oregon's Cascade Range
Below Mount Jefferson and McKenzie Pass is a massive storehouse of water three times the size of Lake Mead, say Oregon ...