Graphic Design USA, a news magazine for graphic designers and creative professionals, publishes two e-newsletters per month.  One of them is entirely focused on green design issues.  Here’s a link to the latest issue. The newsletter is free and features a wide range of interesting news snippets about paper, industry trends, etc.  It’s worth a quick read every month.  Here’s a link to past issues as well as a sign-up form at the bottom of the page.  Enjoy!