Polar ice packs are large areas of pack ice formed from seawater in the Earth's polar regions, known as polar ice caps: the Arctic ice pack (or Arctic ice cap) of the Arctic Ocean and the Antarctic ice pack of the Southern Ocean, fringing the Antarctic ice sheet. Polar packs significantly change their size during seasonal changes of the year. However, underlying this seasonal variation, there is an underlying trend of melting as part of a more general process of Arctic shrinkage.
It’s important to understand that our planet’s climate consists of so much interconnected elements, that what happens someplace affects virtually the entire Earth. Thing is, few people realize the huge impact the warming in the Arctic has on global climate. At a news conference held on Tuesday, several researchers said that the melting ice may [...]
A group of researchers assessed seven individual climate models and found that in each case common open water vessels will be able to navigate through portions of the Arctic, currently possible only with icebreaker ships, by the mid-century. Moreover, the thinning ice will allow ice-strengthened vessels to sail directly over the pole, something currently unimaginable, dramatically shortening [...]
Some 12,900 years ago, a massive flood of melted freshwater in the Arctic caused a 1,200-year-long chill nicknamed the “Big Freeze.” During this time much of the Northern Hemisphere was engulfed by centuries of cold, which caused the extinction of most great mammals, like mammoths, as well as the Clovis people. For decades, scientists have [...]
Arctic ice, a key indicator for global climate status, has reached another record low, lower than in computer estimates, hinting at a major disaster. A new record Researchers from the U.S. National Snow and Ice Data Center announced reached its lowest point on September 16, when it will cover approximately 1.32 million square miles (3.42 [...]
Researchers at the University of Delaware and the Canadian Ice Service recently reported that an ice island, whose surface is twice that of Manhattan, broke off from Greenland’s Petermann Glacier, one of the two largest glaciers left in Greenland connecting the great Greenland ice sheet with the ocean via a floating ice shelf. The 46-square-mile giant iceberg broke [...]
Besides ever thinning ice, permafrost melting, soot deposits, habitat loss, you might as well add another significant factor threatening the arctic ecosystem – mercury. For some time, the alarmingly high mercury concentrations in the regions were rather unaccounted for, in part, however a new research by scientists at Harvard’s Atmospheric Chemistry Modeling Group suggests that [...]
A recent study performed by a team of American/Chinese scientists shows that there’s a direct link between the progressive shrinking ice in the Arctic and in the increasingly harsher snowy winters in the US, Europe and China. In the year 2007, the level of Arctic sea ice hit a record low, which hasn’t recovered to this day. [...]
The arctic ice volume recorded last fall was the lowest ever since the first satellite reports were introduced, according to data furnished by a new study which used complicated weather modeling, ocean observations, submarine data, and space-age monitoring. “Sea ice volume is an important climate indicator,” said the team of scientists from Polar Science Center [...]
Wed, Mar 27, 2013
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