The Delaware Aqueduct is a prime example, serving as a vital lifeline for one of the largest cities in the world. While the Seikan Tunnel in Japan, once the world's largest underwater railway tunnel ...

Someone onboard made a distress call around noon from the sinking boat and told New York City 911 operators ... s cell phone which still pinged from underwater to the sunken boat, sources said.

A Swedish art project aims to create an underwater city of the world’s most famous buildings to highlight the threat from rising sea levels.

underwater mortgages, foreclosures and unemployment - revealed that two-thirds of the 50 counties around the U.S. considered most exposed to potential fallbacks were in California, Florida, Illinois ...