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VIDEO 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 stor...MORE VIDEO


	PHOTO MORE PHOTOS Ice Melt in Iceland On average, Arctic sea ice has decreased by four percent per decade since the la...
	PHOTO MORE PHOTOS Measuring Ice Core Temperatures Marine biologist Mette Kaufman measures the temperature of a recently-drilled ic...
	PHOTO MORE PHOTOS Walrus Rests on Ice Walruses use sea ice as platforms on which to nurse their young and launch their...

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					Sea Ice in its Ever-Changing Forms May 9, 2013 - 9:39AMFor two months, Cassandra Brooks, a marine scientist with Stanford University, travelled on an ice-breaking ship through the Ross Sea in the Antarctica—and she filmed the whole thing. A camera hooked to the front of the ship...

How will climate change affect glaciers and ice sheets?

Apr 24, 2013 - 9:45AM

How will changes in temperature affect glaciers and ice sheets? Dr. Sarah...

Harp Seal, Prince Edward Island National Park, Canada

Apr 3, 2013 - 9:04AM

Harp seals are protected in the United States by the Marine Mammal...

SPOTLIGHT


Under Arctic Ice Hidden beneath Arctic ice is a world few have ever seen. Take the icy plunge with a team of ice-loving scientists.

Ice Melt at the Poles Dec 3 2012 - 10:08am It’s confirmed: both Antarctica and Greenland are losing ice—around 350 billion tons each year—and, as a result, sea level has risen 11.1 millimeters worldwide since 1992. This photo shows a summertime channel created by the flow of melted ice, which ultimately carries the water away from the...	Receding Ice Cover Jan 7 2011 - 12:26pm See an animation showing over time, the receding of summer sea ice in the Arctic.
Arctic Sea Ice: A New Low? Sep 8 2011 - 4:04pm At a recent staff meeting a Smithsonian colleague mentioned that one of his pastimes this summer has been keeping tabs on the Arctic sea ice. The question that's on many Arctic-watchers' minds is whether or not the 2011 sea ice coverage will reach a new record low.	Ice Melt in Iceland Mar 23 2010 - 2:26pm On average, Arctic sea ice has decreased by four percent per decade since the late 1970s. But at the same time, Antarctic ice has increased by 1 percent. Scientists are investigating why. More about climate change can be found in the climate change section.
Walrus Rests on Ice Mar 23 2010 - 2:31pm Walruses use sea ice as platforms on which to nurse their young and launch their dives for clams and other bottom-dwellers. Each spring, walruses move northward to stay close to these perches as ice melts in the south -- but as more and more sea ice melts because of climate change, they may not...	National Ice Center Monitors the Arctic and Antarctic Jan 14 2011 - 2:57pm The National Ice Center’s work is focused on ensuring safe and efficient navigation, but it also supports scientific research and provides crucial information used by scientists to better monitor and understand climate change. Researchers working in the Arctic and Antarctic depend on the support of...
Harp Seal, Prince Edward Island National Park, Canada Apr 3 2013 - 9:04am Harp seals are protected in the United States by the Marine Mammal Protection Act. Although they are not considered endangered, as sea ice melting earlier and earlier each year, available harp seal breeding grounds are being lost in the North Atlantic and Arctic.	Measuring Ice Core Temperatures 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.
Dr. Jan Backman, Marine Geologist 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.	The Hidden Ocean Jan 4 2011 - 4:59pm Hidden beneath Arctic ice is a world few have ever seen. Take the icy plunge with a team of ice-loving scientists.
Under Arctic Ice Jan 4 2011 - 5:17pm Hidden beneath Arctic ice is a world few have ever seen. Take the icy plunge with a team of ice-loving scientists.	Arctic Exploration Jan 14 2011 - 2:45pm New technology is making it possible for scientists to go where they’ve never gone before, the depths of the icy Arctic Ocean. By collecting organisms and mapping the seafloor, researchers can discover the effects of climate change on this region and understand the relationship between the ice,...
Sea Ice in its Ever-Changing Forms May 9 2013 - 9:39am For two months, Cassandra Brooks, a marine scientist with Stanford University, travelled on an ice-breaking ship through the Ross Sea in the Antarctica—and she filmed the whole thing. A camera hooked to the front of the ship recorded the ship’s travels, and the ever-changing sea ice.	How will climate change affect glaciers and ice sheets? Apr 24 2013 - 9:45am How will changes in temperature affect glaciers and ice sheets? Dr. Sarah Das from the Woods Hole Oceanographic Institution explores this phenomenon first hand in Greenland, where she studies how the melted ice travels through glaciers and out to the sea. Learn more about climate change.
Arctic Sea Ice Extent Graph Sep 8 2011 - 7:27pm This graph of the Arctic sea ice coverage shows how close the year 2011 is to reaching a record-low. The graph contains data through September 7, 2011. The National Snow and Ice Data Center, which produced the graph, says we should know within a couple weeks if the ice extent drops below the...