You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract Greenpeace Targets Amazon, Twitter in Effort to Clean Up Web 'ClickClean' Campaign from Via Aims to Spur Green Power Use By Jack Neff, Published on August 19, 2014 1 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.