Some people may like to drink their liquor from an old fruit jar but at baseball parks this summer you may be drinking your beer from a corn starch cup.

Some of the nation’s major league baseball teams are adopting cups made from corn starch this season to help quench the thirst of fans and be more environmentally-friendly at the same time.

The Pittsburgh Pirates, for example, have announced a new greening initiatives program called “Let’s Go Bucs. Let’s Go Green.”

Beginning with the 2008 season, the concessionaires at PNC Park will be using corn-based beverage cups. They are also reportedly printing game-day programs with soy-based inks and providing flex-fuel vehicles for team scouts.

According to Bob Nutting, Pirates Chairman of the Board, “We are not launching this program because ‘going green’ is a popular trend. We are doing it because it is the right thing to do. The measures being put into place at the ballpark will have an immediate positive impact. These initiatives not only make sense for the environment, but they make good business sense as well.”

The Oakland A’s are also reportedly using cups made of biodegradable cornstarch this season.