For decades, scientists have been studying the cause of the Younger Dryas, and trying to figure out if something like it could happen again. And it turns out that what caused this event is the subject of a heated debate.

The oceans are mostly composed of warm salty water near the surface over cold, less salty water in the ocean depths. These two regions don't mix except in certain special areas, which creates a large slow current called the thermohaline...

Delve into the fascinating world of ocean currents, from surface flows influenced by wind patterns to deep currents driven by water density. Learn about the crucial role of currents in regulating global climate and distributing...

Scientists have discovered significant changes in the Atlantic Ocean’s ecosystem that might have been caused by shifts in ocean circulation.

"Salt of the Earth" is Episode 4 in the six-part series "Tides of Change", exploring amazing NASA ocean science to celebrate Earth Science Week 2009.



Salinity plays a major role in how ocean waters circulate around the globe....

The topic of climate change inspires a lot of debate. At NASA, it has also inspired a lot of science.



NASA scientists examine the Earth's climate and how it is changing -- gaining knowledge through decades of...

On Sept. 9th, 2011, Arctic sea ice most likely hit its minimum extent for the year. On Sept. 20th, NASA's Cryosphere Program Manager, Tom Wagner, shared his perspectives on the ice with television audiences across the...

The oceans play a significant role in absorbing greenhouse gases, like carbon dioxide, and heat from the atmosphere. This absorption can help mitigate the early effects of human-emissions of carbon dioxide.



The...

At the Stable Isotope Lab in Boulder, Colo., scientists are doing a lot of the same things that those CSI folks do on TV. But instead of being "crime scene investigators," these experts are more like "cold scene investigators."...

Internal tides, or internal waves, can reach hundreds of feet underneath the ocean surface, but might only be a few inches high on the surface. Even though they’re underwater, NASA can see these tides from satellites. They...

At the Stable Isotope Lab in Boulder, Colorado scientists are doing a lot of the same things that those CSI folks do on TV. But instead of being ""crime scene investigators,"" these experts are more like ""cold scene investigators.""...

Broxton Bird is an associate professor in the Department of Earth Sciences at Indiana University Indianapolis.Bird states traditionally, Antarctic sea ice has been relatively stable in comparison with Arctic sea ice, which has shown a...

A trillion-tonne iceberg, ---



Twice the size of greater london, has come to a standstill near the remote island of south georgia in the south atlanti

c ocean...

The va

st frozen giant, ---

Called A23A is...

A trillion-tonne iceberg, ---



Twice the size of greater london, has come to a standstill near the remote island of south georgia in the south atlanti

c ocean...

The va

st frozen giant, ---

Called A23A is...