Arctic ice:the numbers of late winter

According to data released by the National Snow and Ice Data Center (NSIDC),the ice marine arctic  has reached on 21 March, the seasonal maximum extension amounted to 14.91 million km quadrants, a figure lower than the average of 4% (calculated on the three decades from 1981 to 2010) of 15.5 million square kilometers.

A NASA Blue Marble view of Arctic sea ice on March 21, 2014.

The maximum of this year is also the fifth lowest since 1978(the base year of measurements).

font: NSIDC and U.S.NIC

Luca Maffezzoni

Greenland:discovered a huge canyon longer than Gran Canyon beneath the Arctic ice!

Greenland:discovered a huge canyon beneath the Arctic ice!
Under the ice cap of over 2 km that covers Greenland, a team of scientists, through the development of countless satellite data has discovered a canyon that runs for almost 800 km from the center of the island at the mouth until the Arctic Ocean.
It seems that it is the result of an excavation carried out by the rivers of water flowing in a past time that is between 1 million to 3 million years ago, when the climate was much warmer on earth, and there was still ice cap.
This sensational discovery will have a major impact within the environmental climate models, since within this canyon run the immense masses of water in dissolution below the glacier from where they reach the Arctic Ocean going to affect appreciably the mass balances on the melting of ice and the rise of the oceans

Luca maffezzoni

Arctic glaciers: the current situation.

Although the extent of Arctic ice this year is better than previous years amounting to around 6 million square kilometers and overcoming of 1.28 million square kilometers in the previous year, the inserted video below, made from the center of the polar ‘university of Washington, shows in a clear and unequivocal fashion the trend of gradual decrease in the volume of Arctic sea ice occurred during the last thirty years.