Christopher Krembs         Oceanographer IV         Polar Science Center         Applied Physics Laboratory         University of Washington      Mike Steele         Senior Oceanographer         Polar Science Center         Applied Physics Laboratory         University of Washington      Janet Olsonbaker         Engineer IV         Environmental & Information Systems         Applied Physics Laboratory         University of Washington      Paul Mandeville (Video)      Zach Martin (Audio)         Art Institute of Seattle      APL-UW      Art Institute of Seattle	Scientists study sea ice as a barometer of changes in polar regions that could have significance for our global climate system. Understanding the Arctic's influence on and its response to global heat distribution in the oceans and atmosphere can tell us if we're in danger of widespread drought, crop failure, or rising sea levels. This video explores the dynamics of sea ice in the arctic region. Click on one of the images below to watch the video. Sea Ice Video: Running Time ~ 5 min Large Size 640x480 148 MB Small Size 320x240 50 MB Inuits employ modern technology to aid hunting in the Arctic. Scientists can study sea ice growth history by examining core samples. Microorganisms can inhabit channels in sea ice. These tiny creatures release slime that can weaken the structure of the ice. Freshwater melt ponds are unique to the Arctic.