CO2 now at 392.94 ppmby steveJune 21, 2010June 21, 2010 For more information on CO2 go to the site CO2 now. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email.