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please discuss the "phases" on the talk page
'''Ice''' is the [[solid]] phase of [[water]]. At one atmosphere of [[pressure]], ice melts at 32 degrees [[Fahrenheit]] (0 degrees [[Celsius]]). There are more than 17 different kinds, or ''phases'', of ice,<ref>''See'' Martin Chaplin, [http://www1.lsbu.ac.uk/water/ice.html The ice phases of water]</ref> but the only type found in abundance on earth is known as ''Ice I<sub>h</sub>''.<ref>''See'', ''e''.''g''. New York University, [http://www.nyu.edu/pages/mathmol/txtbk2/topic7.htm About Water and Ice]; Martin Chaplin, [http://www1.lsbu.ac.uk/water/ice1h.html Hexagonal Ice (Ice Ih) structure]</ref>
'''Ice''' is the [[solid]] phase of [[water]]. At one atmosphere of [[pressure]], ice melts at 32 degrees [[Fahrenheit]] (0 degrees [[Celsius]]).
Due to the nature of its crystalline structure, ice I<sub>h</sub> is slightly less dense than liquid water, causing it to float.
Due to the nature of its crystalline structure, ice is slightly less dense than liquid water, causing it to float.
70% of the world's fresh water is ice, almost all of it located at the polar ice caps in [[Antarctica]] and the [[Arctic]] (compared to the ice caps, the amount of ice stored in freezers in warmer areas is negligible). However, this only constitutes a small percentage of the Earth's overall water reserves<ref>[http://www.globalchange.umich.edu/globalchange2/current/lectures/freshwater_supply/freshwater.html The Water Resources of Earth]</ref>.
70% of the world's fresh water is ice, almost all of it located at the polar ice caps in [[Antarctica]] and the [[Arctic]] (compared to the ice caps, the amount of ice stored in freezers in warmer areas is negligible). However, this only constitutes a small percentage of the Earth's overall water reserves<ref>[http://www.globalchange.umich.edu/globalchange2/current/lectures/freshwater_supply/freshwater.html The Water Resources of Earth]</ref>.