1.0NIShttps://www.nis.rs/en/Evgeny Kuzminovhttps://www.nis.rs/en/author/evgeny-kuzminov-2/rich600338<blockquote class="wp-embedded-content" data-secret="UqJrKKXB7k"><a href="https://www.nis.rs/en/news-archive/energy-efficiency-what-why-how/">Energy Efficiency – What, Why, How?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.nis.rs/en/news-archive/energy-efficiency-what-why-how/embed/#?secret=UqJrKKXB7k" width="600" height="338" title="“Energy Efficiency – What, Why, How?” — NIS" data-secret="UqJrKKXB7k" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! 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); //# sourceURL=https://www.nis.rs/wp-includes/js/wp-embed.min.js </script> Energy efficiency makes us less vulnerable to energy shortages, reducing pollution and improving daily living conditions directly. Two dominant and closely interrelated problems the world seems to be facing nowadays are, on the one hand, energy supply shortages and insecurity, and on the other hand, environmental pollution and climate changes as a consequence of excessive […]