The deep sea begins at about 200 meters below sea level, where light starts to diminish in a region called the twilight zone.

Scientists confirm Zealandia, Earth's eighth continent, submerged almost two million square miles, with only 5% above water.

Factors such as geological uplift, land subsidence, ocean currents and other processes all impact regional sea level trends. "Many people who live near the coast want to know what they can ...

Seas are forecast to rise from 8 inches to 23 inches along the nation’s coasts by 2050. But risks extend well past the ...

A new study of the 28 most populous U.S. cities finds that all are sinking to one degree or another. The cities include not just those on the coasts, where relative sea level is a concern ...

Known scientifically as land "subsidence," the most common cause of the sinking is "massive ongoing groundwater extraction," say the study authors, though other forces are at work in some places. The ...

The moment that led to me being threatened with having my daughter booted out of her temple preschool for a social media ...

Deep-sea mining is the extraction of minerals — mainly polymetallic nodules rich in cobalt, nickel, and manganese — that lie on the seabed at about 4,000 metres below sea-level. Countries have ...

Such a quake would triple the amount of land in the 100-year floodplain ... shows forests becoming mudflats after slumping below sea level. Related: A long-lost ice sheet could predict the future ...

Pat Williams found what he believed was the perfect site to build a stadium in 35 acres of wooded land next to Aquatica, used for utility infrastructure and overflow parking.