What Are Polar Ice Caps?
According to Wikipedia, a polar ice cap is a “high latitude region of a planet or natural satellite that is covered in ice.” Further, the size, shape or the amount of ice does not define an ice cap. What does matter is that the ice cap must be solid landmass with ice covering it. All of the Earth’s ice caps are formed from water, which differ from the ice caps on Mars where they are made of both water ice and carbon dioxide. Ice caps form due their high elevations and lack of solar radiation. Sadly, the Earth’s ice caps have transformed over the past 12,000 years and yes, they are melting.