A polar ice cap is a high latitude province of a planet or natural satellite in the universe that is covered completely with ice. Polar ice caps form because of the high latitude regions receiving less of energy in the form of solar radiation from the sun than equatorial regions. It results in lower surface temperatures.

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The Earths’ polar ice caps have distorted considerably over the last twelve thousand years or even more. Cyclic variations of the ice caps occur due to varied solar energy absorption as the planet or moon spins around the sun. Furthermore, in geologic point scales, the ice caps possibly will grow or disappear due to the climate variation. Anything can happen.

Arctic shrinkage is the diminution in size of the Arctic region. This is a variation in the regional climate as a consequence of global warming. Projections of sea ice loss points out the destruction of summer sea ice in the Arctic ocean within the coming few decades. In fact, according to studies, the destruction has already been started.

This fast change of Arctic to global warming looks like the high-sensitivity indicator of the climate change. Scientists also spot to the possibility for release of methane from the Arctic region. It will be through the melting of the permafrost and the methane clathrates.

The sea ice in the Arctic region itself is imperative to balance the global climate. Therefore, melting of these sea ice will make worse situation towards the global warming due to the effects where warming creates more warming by increased solar assimilation.

The sea ice is doomed to melt away within the next three centuries and it will as an aftermath will flood hundreds of millions of people out of their homes. This is the stark warning by scientists that current forecasts hideously overrate how long the ice sheet will continue to exist.

The Intergovernmental Panel on Climate Change (IPCC) stated that a total meltdown is likely to take within 1,000 years or may be the risk is far greater than this. We can’t predict correctly, but strong indication gives this projection.

If the climate change crisis reached the point of ‘no return’ and it were to melt then the global sea levels would rise by 22ft and sip up most of the world’s coastal regions.

Not to forget that arctic sea ice acts like an air conditioner for the universal climate structure. It cools air and water and reflects solar emission back into the space. A warmer Arctic and thinner ice cap alters the equilibrium between the usually frozen Arctic and warmer lower latitudes. The disparity between icy high latitudes and warm equatorial regions is one that sets up the circulation patterns of winds, ocean and essentially the weather patterns. So, all of those things are matter to change as the ice cover changes. Thanks to sciencehax .