If like me page load performance is very important you can remove the CSS from the header.
Wp-recaptcha adds this to EVERY PAGE!!!:
<link rel="stylesheet" type="text/css" href="http://coolvibe.com/wp-content/plugins/wp-recaptcha/recaptcha.css" />
I ONLY use wp-recaptcha for new registrations. So CSS on every blog page was just pointless!
I removed by changing this: