1.0planet forward//www.getitdoneaz.comdavid g. maskalick, ph.d.//www.getitdoneaz.com/author/davidgmaskalickphd/ rich600338<blockquote class="wp-embedded-content" data-secret="0fbwm2hqxl"><a href="//www.getitdoneaz.com/story/perspectives-on-sustaining-our-planet/">perspectives on sustaining our planet</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="//www.getitdoneaz.com/story/perspectives-on-sustaining-our-planet/embed/#?secret=0fbwm2hqxl" width="600" height="338" title="“perspectives on sustaining our planet” — planet forward" data-secret="0fbwm2hqxl" 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> sustainability: historical perspective. ideas related to sustainability have been expressed by many people and cultures throughout history. “treat the earth well: it was not given to you by your parents, it was loaned to you by your children. we do not inherit the earth from our ancestors, we borrow it from our children.”(a native american...