Beyond renewable energy, reducing the environmental footprint of the big game also takes a big a commitment. The NFL and Green Mountain are working closely with the host city of Indianapolis to leave behind a lasting positive impact. This includes planting trees in urban areas of Indianapolis as well as donating a residential solar array to help revitalize one of the city's central neighborhoods.

Check out the infographic below for a quick look at the environmental impact of Super Bowl XLVI:

The teams and fans are also taking part. Green Mountain is providing carbon offsets to balance out the greenhouse gas emissions created by the Patriots' and Giants' air and ground travel and has also offered up tips to fans on how to green their Super Bowl party.

"Green Mountain Energy Company has helped us reduce the overall environmental impact of Super Bowl activities," according to NFL Environmental Program Director Jack Groh. "Together, we have been able to expand the way we address greenhouse gas emissions and leave a permanent benefit to the host community."

The NFL's environmental commitment and green leadership is a great step forward for professional sports. In addition to Green Mountain's efforts, the 2012 Super Bowl Host Committee also developed the 1st & Green program to encourage individuals, households and groups to offset carbon emissions and save water.

The greening of the professional sports business is catching on. Last year NASCAR launched a multi-year bio-fuels program as part of its "NASCAR Green" environmental initiative – which over the years has also included a massive recycling program, saving more than 1,000 tons of waste in 2011. Individual teams are also catching wind. Teams from 13 different sports leagues have joined the Green Sports Alliance, a non-profit organization helping sports teams, venues, and leagues enhance their environmental performance.

Greening up professional sports continues to be a win for fans and business alike.

_{Stadium photo CC-licensed by hyku.}