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       Earth Sciences Forum Forum Index -> Atmosphere, Ocean, and Climate
scpg02

Satellites witness lowest Arctic ice coverage in history

Satellites witness lowest Arctic ice coverage in history
14 September 2007

Quote:
The area covered by sea ice in the Arctic has shrunk to its lowest level this week since satellite measurements began nearly 30 years ago, opening up the Northwest Passage – a long-sought short cut between Europe and Asia that has been historically impassable.

In the mosaic image above, created from nearly 200 images acquired in early September 2007 by the Advanced Synthetic Aperture Radar (ASAR) instrument aboard ESA’s Envisat satellite, the dark gray colour represents the ice-free areas while green represents areas with sea ice.
Leif Toudal Pedersen from the Danish National Space Centre said: "We have seen the ice-covered area drop to just around 3 million sq km which is about 1 million sq km less than the previous minima of 2005 and 2006. There has been a reduction of the ice cover over the last 10 years of about 100 000 sq km per year on average, so a drop of 1 million sq km in just one year is extreme.

http://www.esa.int/esaEO/SEMYTC13J6F_planet_0.html
Andre

Thanks Maggie, For a balance, it happened before:

http://www.newsbusters.org/blogs/...melt-disgracefully-ignore-history

Quote:
..For instance, a name media would love for global warming alarmists not to know is Roald Amundsen, a Norwegian explorer who successfully navigated the Northwest Passage on August 26, 1905 (h/t Walt Bennett, Jr.):
...

Between 1940 and 1942 St. Roch navigated the Northwest Passage, arriving in Halifax harbor on October 11, 1942. St. Roch was the second ship to make the passage, and the first to travel the passage from west to east. In 1944, St. Roch returned to Vancouver via the more northerly route of the Northwest Passage, making her run in 86 days.
..

Putting it all together, when you consider that serious monitoring of Arctic ice levels only started in 1972, and that explorers successfully navigated these seas in relatively archaic ships 60 and 100 years ago, how can anybody honestly claim that today's conditions in this region are in any way unprecedented, historic, or grim?

scpg02

There you go confusing the issue with the facts.

       Earth Sciences Forum Forum Index -> Atmosphere, Ocean, and Climate
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