Scientists used robot submarines and elephant seals equipped with electronic tags . ( IPY ) that aimed to investigate the effects of global warming in polar regions . The projects ' goal is to study impacts of climate change on Antarctica . The International Polar Year ended last month after two years of research . The IPY featured 160 scientific projects by researchers from over 40 countries .
Scientists used robot submarines and elephant seals equipped with electronic tags . The projects ' goal is to study impacts of climate change on Antarctica . The International Polar Year ended last month after two years of research . The IPY featured 160 scientific projects by researchers from over 40 countries .