From an article in The Business Journal:

Ball Corp. said Monday it intends to reduce its greenhouse gas emissions by 16 percent in the next four years.

The Broomfield, Colo.-based manufacturer of beverage cans and bottles (NYSE: BLL) said the goal for cutting emissions is based on a 2002 baseline and will occur through improved energy efficiencies. The firm operates metal beverage and metal food packaging plants in Milwaukee.

Ball disclosed the goal for 2012 in a report titled “Toward a Sustainable Future,” which identifies areas where the company is trying to reduce its environmental impact.

Ball said its primary focus is to make lightweight, recyclable packaging when feasible. Using lighter cans means less material is needed, fewer greenhouse gases are produced and less energy is needed for shipping.

Ball said the weight of its products has been reduced substantially through the years. Aluminum cans are 40 percent lighter than they were in 1969, and the steel cans are 50 percent lighter than in 1970.

By turning more to recycled materials, Ball said it can cut 95 percent of the energy used to make aluminum cans from virgin material and 74 percent of the energy required to make steel cans.

The company also is working with the metal industry to determine the carbon footprint of its metal cans. . . .

The company’s Ball Metal Beverage Container has a contract with Miller Brewing Co. to serve as the sole supplier of cans for the Milwaukee brewer through 2015.