Conversation so far:
What are some of the green building practices?
In 1990, the Mart Center began using Green Seal-approved green cleaning products and the next year implemented a recycling program.
What did the recycling program include?
all forms of paper products, glass, light bulbs, batteries, aluminum and construction materials.
How was the recycling program ran?
enter into an agreement with the district cooling system now known as Thermal Chicago, thus contributing to the national effort to reduce the discharge of ozone-damaging CFCs.
Was the recycling program a success?
To date, the Mart Center has reduced pollution by 264,018 pounds (119,757 kg), the largest reduction by a commercial building.

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