Our first reading is from Meg Calkin's:
Calkins, Meg. "Materials for Sustainable Sites Defined." Materials for Sustainable Sites: a Complete Guide to the Evaluation, Selection, and Use of Sustainable Construction Materials. Hoboken, NJ: Wiley, 2009. 1-12. Print.
Calkins, Meg. "Background: Inputs, Outputs, and Impacts of Construction Materials." Materials for Sustainable Sites: a Complete Guide to the Evaluation, Selection, and Use of Sustainable Construction Materials. Hoboken, NJ: Wiley, 2009. 13-52. Print.
Please post your thoughts and questions as comments to this post by Thursday at midnight.