"Polar ice" refers to the ice that forms in the Earth's polar regions, such as the North and South Poles. It is a thick layer of frozen water that covers the surface of the polar oceans and land masses in these regions. Full definition
That include melting of polar ice caps, economic consequences, warmer waters and more hurricanes or disasters, the spread of diseases and earthquakes. (studentsassignmenthelp.com)
Because of the warming, «there are some potentially catastrophic events that must be considered,» including sea level rise from melting polar ice sheets, according to the document. (insideclimatenews.org)
In relation to fossil fuels and global warming, as the planet heats up, the oceans expand due to the melting of polar ice sheets. (earthday.org)