This weekend EMBARQ participated in the 5th Annual AltWheels Festival , which is the largest alternative transportation and energy festival on the east coast of the U.S.

Held on Boston’s City Hall Plaza, this year’s AltWheels was a flurry of activity featuring everything from homemade biodiesel cooperatives to web 2.0 ridesharing company GoLoco to plug-in hybrid manufactures to Moonbeam, a contender for the Automotive X-Prize.

One highlight was an appearance by the Mayor of Boston, Tom Menino, who announced a new diesel retrofit grant program for Boston, promised to plant over 100,000 trees in Boston over the next 12 years, and to make Boston the most bike friendly city in the country.