Can you offer landscaping ideas for a small urban backyard?

— Robyn Shaw, Brooklyn, NY

Answered by Susan Wisniewski on May 2, 2008

What is the outlook for "porous" pavements?

— Jim

Answered by Mick Dalrymple on March 27, 2008

What are the best green alternatives to wood for decking?

— Jodi Ropert, Windsor, CA

Answered by Marian Keeler on January 7, 2008