",{"id":"SIGNIN"}).html('
×
').appendTo("body");jQuery("#SIGNIN").on('click',function(e){closeLogin()})},closeLogin=function(){jQuery("#SIGNIN").remove();jQuery("body").css("overflow","inherit")},adjustLoginHeight=function(h){jQuery("#Oframe").height(h)},login_success=function(sess){jQuery(".sign-up").html("LOGOUT").on('click',function(){location.href="https://signin."+CEN_DOMAIN+"/oauth/logout"});closeLogin()},LANG='en',commentHeight=function(data){jQuery("#block-ibt-comment iframe").height(data.height)};var login_success=function(sess){closeLogin();jQuery("article").removeClass("wall");jQuery(".login-btn .sign-up2").hide();jQuery(".login-btn .myaccount").show();jQuery(".only-before-login").hide();if(typeof sess=='object'){sess=sess.sess};jQuery("
",{"id":"TEMPE"}).html('').appendTo("body");jQuery("#TEMPE iframe").on("load",function(){jQuery("#TEMPE").remove();if(jQuery("iframe.comment").length){jQuery("iframe.comment").get(0).contentWindow.postMessage({'action':'success',},'*')}});afterLogin()};function afterLogin(){};doFir.push(function(){jQuery(document).ready(function(){jQuery(".sign-up2").on('click',function(e){e.preventDefault();e.stopPropagation();openLogin('https://signin.'+DOMAIN.replace(/ibtimes\.[\.a-z]+/,'ibtimes.com')+'/oauth?l='+jQuery(this).attr('data-lang'))})})})
Researchers from the University of Washington found that Earth's ancient atmosphere is thinner than that on Mount Everest today. The team also found that life thrived then despite having weak sunlight and high levels of greenhouse gases.