1.0Sightline Institutehttps://www.sightline.orgAlan Durninghttps://www.sightline.org/profile/alan-durning/rich600338<blockquote class="wp-embedded-content" data-secret="7IGMLXlDEB"><a href="https://www.sightline.org/2004/04/16/turning_and_tur/">Turning and turning in the widening gyre</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.sightline.org/2004/04/16/turning_and_tur/embed/#?secret=7IGMLXlDEB" width="600" height="338" title="“Turning and turning in the widening gyre” — Sightline Institute" data-secret="7IGMLXlDEB" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script> Today’s Science magazine holds an article (summarized here) by Northwest researchers about circumpolar winds and oceanic currents. These huge gyres of cold air and water help to maintain the global climate within the bounds that have proved conducive to human civilization. (A Cascadia example: our thick winter snowpacks and the resulting abundance of year-round freshwater.) […]http://www.sightline.org/wp-content/images/legacy/energy-sm.jpg