Peter Gleick of the Pacific Institute joins, and here is his introductory post!

Welcome to the first post in my new National Geographic ScienceBlogs column “Significant Figures.” I look forward to sharing my thoughts with you on a wide range of environmental science-related issues, data, and people, and to a productive and constructive interaction….

If you’ve hear me mention something about “something cool about to happen on the blogs” lately, this is it. Welcome Peter!