1.0Zuelchhttps://www.zuelch.de/en/harzkindhttps://www.zuelch.de/en/author/harzkind/rich600338<blockquote class="wp-embedded-content" data-secret="jOdYXWl0A0"><a href="https://www.zuelch.de/en/company/quality-environment-2/">Quality & Environment</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.zuelch.de/en/company/quality-environment-2/embed/#?secret=jOdYXWl0A0" width="600" height="338" title="“Quality & Environment” — Zuelch" data-secret="jOdYXWl0A0" 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.zuelch.de/wp-includes/js/wp-embed.min.js </script> https://www.zuelch.de/wp-content/uploads/2022/05/pexels-alena-koval-886521.webp480720Quality & Environment The people of the Harz Mountains have always been close to nature, because they did not want to deprive themselves of the very foundation of their economy. As early as the 15th century, trees were planted to provide wood—a raw material for mining and smelting—for future generations. So even back then, people […]