Cores

The Ocean Drilling Vessel Chikyu

The Chikyu allows scientists to gather and study data about seafloor sediments as soon as they are collected. After a powerful 9.0 earthquake triggered a devestating tsunami in Japan in March 2011 , Japanese...

Foraminifera on the Seafloor

Dr. Karen Bice studies the foraminifera in ocean sediment to better understand climate change. More about scientists studying world climate change can be found in our Climate Change featured story .

Dr. Jan Backman, Marine Geologist

Drilling near the North Pole, Dr. Jan Backman reveals a brief moment in time when the Arctic was subtropical. More about world climate change can be found in our Climate Change featured story .

Taking an Ice Sample

Using a drill, a team removes a chunk from the thick Arctic ice. Small samples are taken from where the ice meets liquid seawater. The ice is then melted for analysis.
Swimmers brave the waters in the shadow of a coal-fired power plant.  Coal plants like this one emit CO2 into our atmosphere which is warming the planet and altering the chemistry of the ocean.

Climate Change

Today, carbon dioxide (CO2) levels in our atmosphere are the highest they've been in 15 million years. It's the cumulative impact of an ever-expanding population―7 billion people and rising―and an ever-increasing thirst for energy,...
On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.

Sea Level Rise

The ocean never stops moving. When you visit the beach, waves roll in and recede and the tides rise and fall. These are small daily changes that balance out over time. But over the...