recentpopularlog in

jerryking : arctic   5

Global Warming May Chill the North - WSJ.com
March 7, 2003 | WSJ | By SHARON BEGLEY | Staff Reporter of THE WALL STREET JOURNAL.

It helps to think of the Gulf Stream as a checkout counter. When this warm, salty current reaches its Northern terminus, the arctic air cools it, causing it to sink (cold water is denser than warm). Much like a grocery-store conveyor belt that dives underneath the counter pulls up the other end, the Gulf Stream's plunge pulls warm tropical water up to the Northeastern U.S. and Canada and Western Europe. That makes these regions at least 9.5° F. warmer than they'd be without the Gulf Stream...."We're seeing huge freshening in the North Atlantic," says Mr. Gagosian. "The sinking of the cold, salty water has slowed 20% in the last 30 years." No one knows how much of a freshwater influx would shut down the Gulf Stream (this winter's big chill in the Northeast is not a sign that the current is weakening so much as a sneak preview of what climate would be like without it). But if the tipping point were reached, the nations of the North Atlantic could face a so-called little ice age in under a decade. Icebergs would lurk off Portugal....The surprising discovery, based on airborne surveys and satellite images, is forcing scientists to re-examine the possibility that ice shelves act like corks in a bottle: Remove them, and the glaciers behind accelerate toward the sea. Glaciers are moving as much as 200% faster where an ice shelf has disappeared, says glaciologist Robert H. Thomas of NASA: "Individually, the extra water a glacier adds to the world's seas doesn't amount to much, but if more and more glaciers start surging as we lose ice shelves it's a much bigger problem."
climate_change  Arctic  Gulf_Stream  tipping_points  Sharon_Begley  counterintuitive  the_Atlantic 
january 2013 by jerryking
PREVIEW-Arctic nations eye future of world's last frontier
May 10, 2011 | Reuters | By Andrew Quinn.

* Evidence mounts of accelerating climate change

* Oil, shipping, fisheries eye new opportunities

* Nations boost cooperation to face shared risks
Arctic  climate_change  Greenland  oil_industry  natural_resources  shipping  fisheries 
october 2011 by jerryking
the arctic: A View From Moscow
2010 | Carnegie Endowment for International Peace | Dmitri Trenin and Pavel K. B
Arctic  Russia  foreign_policy  filetype:pdf  media:document 
december 2010 by jerryking
The Rise of the Arctic - WSJ.com
SEPTEMBER 18, 2010 | Wall Street Journal |By LAURENCE C.
SMITH. Unfreezing Arctic Assets .A bloc of countries above the 45th
parallel is poised to dominate the next century. Welcome to the New
North.
Arctic  21st._century 
september 2010 by jerryking

Copy this bookmark:





to read