Ice loss in the Arctic (Credit: Ben Holt, Sr., NASA)
Recent satellite imagery shows that Arctic sea ice has increased in volume by 50 percent since last year, CBC News reported.
In the fall of 2012, a European Space Agency satellite recorded a historically low volume of sea ice on the Arctic Ocean: 6,000 cubic kilometers. A year later, in October 2013, the same satellite measured 9,000 cubic kilometers of ice.
Sea ice volume measured approximately 20,000 cubic kilometers of the Arctic in the 1980s. Scientists use both volume and surface coverage to monitor climate change.
The ESA launched the CryoSat satellite in 2010 to measure changes in Arctic sea ice thickness and volume.
Image: Arctic sea ice (Credit: Ben Holt, Sr., NASA)