{"version":"1.0","provider_name":"planet forward","provider_url":"\/\/www.getitdoneaz.com","author_name":"national science foundation","author_url":"\/\/www.getitdoneaz.com\/author\/nationalsciencefoundation\/","title":"controlling light pollution - planet forward","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"zqpclkpwbd\"><a href=\"\/\/www.getitdoneaz.com\/story\/controlling-light-pollution\/\">controlling light pollution<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"\/\/www.getitdoneaz.com\/story\/controlling-light-pollution\/embed\/#?secret=zqpclkpwbd\" width=\"600\" height=\"338\" title=\"&#8220;controlling light pollution&#8221; &#8212; planet forward\" data-secret=\"zqpclkpwbd\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![cdata[ *\/\n\/*! this file is auto-generated *\/\n!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);\n\/* ]]> *\/\n<\/script>\n","description":"new measurements of the nsf-funded kitt peak national observatory near tucson, ariz., show that sky brightness has remained remarkably constant over the past 20 years, despite the area&#8217;s rapid population growth. the study demonstrates that with a conscientious effort, human-caused light pollution can remain constant, despite large population growth in cities. shielded outdoor lights, required..."}