1.0planet forward//www.getitdoneaz.comnational science foundation//www.getitdoneaz.com/author/nationalsciencefoundation/ rich600338<blockquote class="wp-embedded-content" data-secret="xi0taaukan"><a href="//www.getitdoneaz.com/story/a-new-biofuel-mixed-prairie-grasses/">a new biofuel – mixed prairie grasses</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="//www.getitdoneaz.com/story/a-new-biofuel-mixed-prairie-grasses/embed/#?secret=xi0taaukan" width="600" height="338" title="“a new biofuel – mixed prairie grasses” — planet forward" data-secret="xi0taaukan" 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> mixed prairie grasses, grown on degraded land, may be a better source of biofuel than corn ethanol or soybean biodiesel. the study, led by david tilman at the university of minnesota, showed that fuel made from prairie grass yields 51 percent more energy per acre than ethanol from corn grown on fertile land. using prairie...