The ice is important because it helps keep the Arctic cold and reduces extremes in the Earth's climate.

VOA: special.2009.10.27

Arctic sea ice is important because it throws sunlight back into space, keeping the sea cold.

VOA: special.2009.05.05

Scientists say ninety percent of all Arctic sea ice is only one or two years old.

VOA: special.2009.05.05

The water under the ice is very salty and contains many kinds of minerals including iron.

VOA: special.2009.06.03

The new ice is thinner and melts faster than the older ice.

VOA: special.2009.05.05

The total of sea ice is known as the sea ice extent.

VOA: special.2009.10.27

Explorer Pen Hadow led a two-and-a-half-month trek earlier this year that revealed Arctic ice is melting faster than previously thought.

VOA: standard.2009.12.13

"It is a bilateral program by which now ICE is redirecting criminals, Mexican nationals, away from Juarez, and they are being sent to Laredo, Eagle Pass and Del Rio,Texas."

VOA: standard.2010.04.01

The Arctic ice is their main habitat, and when it goes, their numbers are expected to drop dramatically, says Colin Butfield - the campaign's director for the World Wildlife Fund.

VOA: standard.2009.12.13

Climate change is also leading to the melting of ice in other areas, such as Mount Kilimanjaro in northeastern Tanzania.

VOA: special.2009.04.22

It is very thin now. Find a place where the ice has melted, then tie some logs together.

VOA: special.2010.06.26

But he says there is no reason to think that the ice levels will return to the levels of thirty years ago.

VOA: special.2009.10.27

The blue light is the product of a long travel path through the snow or ice.

VOA: special.2010.01.05

"Ahh!" July may be hot but another cool hit may be coming with the movie "Ice Age" This is the third in the "Ice Age" animated series.

VOA: special.2009.06.12

September is the month when the sea ice extent is at its lowest.

VOA: special.2009.10.27

The newer ice,experts say, is less resistant to melting during the summer months.

VOA: special.2009.05.05

Walter Meier is a scientist with the National Snow and Ice Data Center.

VOA: special.2009.05.05

Experts say the Arctic sea ice extent is under threat.

VOA: special.2009.10.27

About ninety-eight percent of this area is covered in ice.

VOA: special.2009.06.03

"Well,they're easy to eat, they're like bite-size portions which is better than cake or ice cream, so you don't feel like you get as many calories if you eat just one.

VOA: special.2010.04.12

Curling is a team sport played on ice.

VOA: special.2010.02.10