Conversation so far:
What are some of the green building practices of Merchandise Mart?
In 1990, the Mart Center began using Green Seal-approved green cleaning products and the next year implemented a recycling program.
What did Merchandise Mart's recycling program include?
The Mart Center implemented a recycling program, which today includes all forms of paper products, glass, light bulbs, batteries, aluminum and construction materials.
How was Merchandise Mart's recycling program run?
Was Merchandise Mart's recycling program a success?
The Mart Center recycling program saved over 13,000 trees and recycled nearly 11 million pounds of waste.

Question: Did they encounter any problems with establishing green practices?
Self-contained rewrite: Did Merchandise Mart encounter any problems with establishing green practices?