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Jan 10 2011 - 12:55pm
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.
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Jan 4 2011 - 5:15pm
Marine biologist Mette Kaufman measures the temperature of a recently-drilled ice core. Variations in temperature at different points of the ice core provide information about the living conditions of the various organisms that live in the Arctic ice.
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Jan 26 2010 - 11:45am
Dr. Karen L. McKee collects a peat core in a mangrove forest in Belize. It will help her reconstruct how mangroves have changed over the past 8,000 years. Dr. McKee’s research has shown that when mangroves are removed, islands begin to sink and erode. More about mangroves can be found in our...
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Jul 24 2012 - 11:45am
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, requiring 24/7 electricity, factories, cars, trucks, planes...
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Mar 26 2010 - 12:01pm
Dr. Karen Bice studies the foraminifera in ocean sediment to better understand climate change.
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Mar 26 2010 - 1:03pm
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.
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Mar 23 2010 - 12:02pm
Researchers bring a sediment core dug from the seafloor off the coast of Panama onto the deck of a ship. Cores like these are shedding light on what Earth’s climate was like in the past. More about climate change can be found in our climate change featured story.
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Jan 6 2011 - 10:11am
To learn more about the creatures living on the Arctic seafloor, scientists use a variety of tools including this box corer.
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