On Nov. 30, the Center on Sustainable Communities will hold its annual membership meeting from 4 to 5 p.m. at the Des Moines Central Library. The nonprofit organization, which serves as an educational resource for sustainable building practices, will cover its 2010 accomplishments and share its goals for 2011. A social hour will follow the meeting, which is free and open to the public. For more information or to register, call Leslie Berckes at (515) 707-2787 or e-mail her at leslie@icosc.ocm.