1.0Ecosystem Marketplacehttps://www.ecosystemmarketplace.comrich600338<blockquote class="wp-embedded-content" data-secret="RNUWXNePQq"><a href="https://www.ecosystemmarketplace.com/articles/registries-tracking-the-trades/">Registries: Tracking the Trades</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.ecosystemmarketplace.com/articles/registries-tracking-the-trades/embed/#?secret=RNUWXNePQq" width="600" height="338" title="“Registries: Tracking the Trades” — Ecosystem Marketplace" data-secret="RNUWXNePQq" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /*! This file is auto-generated */ !function(c,l){"use strict";var e=!1,o=!1;if(l.querySelector)if(c.addEventListener)e=!0;if(c.wp=c.wp||{},c.wp.receiveEmbedMessage);else if(c.wp.receiveEmbedMessage=function(e){var t=e.data;if(!t);else if(!(t.secret||t.message||t.value));else if(/[^a-zA-Z0-9]/.test(t.secret));else{for(var r,s,a,i=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),n=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),o=0;o<n.length;o++)n[o].style.display="none";for(o=0;o<i.length;o++)if(r=i[o],e.source!==r.contentWindow);else{if(r.removeAttribute("style"),"height"===t.message){if(1e3<(s=parseInt(t.value,10)))s=1e3;else if(~~s<200)s=200;r.height=s}if("link"===t.message)if(s=l.createElement("a"),a=l.createElement("a"),s.href=r.getAttribute("src"),a.href=t.value,a.host===s.host)if(l.activeElement===r)c.top.location.href=t.value}}},e)c.addEventListener("message",c.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",t,!1),c.addEventListener("load",t,!1);function t(){if(o);else{o=!0;for(var e,t,r,s=-1!==navigator.appVersion.indexOf("MSIE 10"),a=!!navigator.userAgent.match(/Trident.*rv:11\./),i=l.querySelectorAll("iframe.wp-embedded-content"),n=0;n<i.length;n++){if(!(r=(t=i[n]).getAttribute("data-secret")))r=Math.random().toString(36).substr(2,10),t.src+="#?secret="+r,t.setAttribute("data-secret",r);if(s||a)(e=t.cloneNode(!0)).removeAttribute("security"),t.parentNode.replaceChild(e,t);t.contentWindow.postMessage({message:"ready",secret:r},"*")}}}}(window,document); </script> https://www.ecosystemmarketplace.com/wp-content/uploads/2014/08/img_3281.jpg175175In the classic comedy The Producers, an unscrupulous businessman sells one product to scores of investors, each of whom believes they are the sole owner. In ecosystem markets, we call that "double counting" – and it's what registries have been set up to prevent. The Ecosystem Marketplace takes stock of carbon credit registries in the voluntary markets.