Quincy, Mass.-based Stop & Shop Supermarket plans to further enhance its sustainability program through new measures to reduce greenhouse gas emissions.

This is in addition to the company’s 2008 pledge to reduce its carbon footprint by 20% by 2015, according to a news release.

“Stop & Shop is committed to responsible retailing knowing that what’s good for society is good for business, too,” said Joe Kelley, president of Stop & Shop New England, in a news release. “We continuously strive for ways in which we can make a positive impact in the communities we serve.”

The company partnered with and is a member of the Environmental League of Massachusetts’ Corporate council and recommitted itself to the Global Warming Solutions Act through the Commonwealth of Massachusetts, which plans to reduce greenhouse gas emissions by 25% by 2020 and 85% by 2050.

Stop & Shop has implemented energy savings measures including white roofing, skylights, LED lights, low air return for frozen, low flow bathrooms and prep areas, light sensors, energy efficient coolers and refrigerants and using energy efficient trucks for transportation.

Fifty-four of the company’s 131 stores have earned Leadership in Energy and Environmental Design certification, and use 20% less energy than a typical grocery retailer.