Shaun Kenney | Politics and Religion in Virginia's Public Square


Wednesday, November 30, 2005 Ice Age! Because of Global Warming!!! You gotta read this: The ocean current that gives western Europe its relatively balmy climate is stuttering, raising fears that it might fail entirely and plunge the continent into a mini ice age. The dramatic finding comes from a study of ocean circulation in the North Atlantic, which found a 30% reduction in the warm currents that carry water north from the Gulf Stream. The slow-down, which has long been predicted as a possible consequence of global warming... Woah whoa whoa... I had to stop reading at this point. WHAT?! Global warming causes ice ages?! Do they read what they write before they print it? Of course, the science is fascinating. Briefly, there is a current that runs along the North Atlantic that terminates in Greenland. As it cools (and ice forms), it descends, and follows a path back to the tropics, where the cycle starts anew. The trick is the saline content in the water -- as ice forms in the north, the salt is carried back to the tropics, and the fluxuating salinity of the water affects the current. At least the end of the article brings some sanity back to the conversation: Nobody is clear on what has gone wrong. Suggestions for blame include the melting of sea ice or increased flow from Siberian rivers into the Arctic. Both would load fresh water into the surface ocean, making it less dense and so preventing it from sinking, which in turn would slow the flow of tropical water from the south. And either could be triggered by man-made climate change. Some climate models predict that global warming could lead to such a shutdown later this century. The last shutdown, which prompted a temperature drop of 5°C to 10°C in western Europe, was probably at the end of the last ice age, 12,000 years ago. There may also have been a slowing of Atlantic circulation during the Little Ice Age, which lasted sporadically from 1300 to about 1850 and created temperatures low enough to freeze the River Thames in London. All that global warming in the 1300s must have really messed up our delicate environment... Pfft. posted by Shaun Kenney \| 11/30/2005 04:09:00 PM \| 0 comments 0 Comments: Post a Comment Home
	RedStormPAC $ JEFFERSONIAD POLL: Whom do you support for Virginia Attorney General? 1) John Brownlee 2) Ken Cuccinelli View Results About ShaunKenney.com is one of Virginia's oldest political blogs, focusing on the role of religion and politics in public life. Shaun Kenney, 30, lives in Fluvanna County, Virginia. Contact E-mail RSS/Atom Feed The Jeffersoniad Archives March 2002 April 2002 May 2002 June 2002 July 2002 August 2002 September 2002 October 2002 November 2002 December 2002 January 2003 February 2003 March 2003 April 2003 May 2003 June 2003 July 2003 August 2003 September 2003 October 2003 November 2003 December 2003 January 2004 February 2004 March 2004 April 2004 May 2004 June 2004 July 2004 August 2004 September 2004 October 2004 November 2004 December 2004 January 2005 February 2005 June 2005 July 2005 August 2005 September 2005 October 2005 November 2005 December 2005 January 2006 February 2006 March 2006 April 2006 May 2006 June 2006 July 2006 August 2006 September 2006 October 2006 November 2006 December 2006 January 2007 February 2007 April 2007 June 2007 July 2007 August 2007 September 2007 October 2007 November 2007 December 2007 January 2008 February 2008 March 2008 April 2008 May 2008 June 2008 July 2008 August 2008 September 2008 October 2008 November 2008 December 2008 January 2009