{"version":"1.0","provider_name":"Harvard Gazette","provider_url":"https:\/\/news.harvard.edu\/gazette","author_name":"gazetteimport","author_url":"https:\/\/news.harvard.edu\/gazette\/story\/author\/gazetteimport\/","title":"Chasing air masses, measuring greenhouse gases &#8212; Harvard Gazette","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"EXJhMlESMK\"><a href=\"https:\/\/news.harvard.edu\/gazette\/story\/2001\/11\/chasing-air-masses-measuring-greenhouse-gases\/\">Chasing air masses, measuring greenhouse gases<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/news.harvard.edu\/gazette\/story\/2001\/11\/chasing-air-masses-measuring-greenhouse-gases\/embed\/#?secret=EXJhMlESMK\" width=\"600\" height=\"338\" title=\"&#8220;Chasing air masses, measuring greenhouse gases&#8221; &#8212; Harvard Gazette\" data-secret=\"EXJhMlESMK\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\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\/\/# sourceURL=https:\/\/news.harvard.edu\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"As policymakers scratch their heads over what to do about increasing levels of greenhouse gases in the atmosphere, Harvard atmospheric chemistry researchers are pioneering new ways to measure these levels. Were chasing air masses, says Christoph Gerbig, a research associate working with Steven Wofsy, Abbot Lawrence Rotch Professor of Atmospheric and Environmental Science. Wofsy, Gerbig, and graduate student John Lin are working on a pilot experiment to determine carbon dioxide amounts on regional and continental scales by chasing blocks of air with an airplane.","thumbnail_url":"https:\/\/news.harvard.edu\/gazette\/wp-content\/uploads\/2001\/11\/cobra-11.jpg"}