Mayor Joseph A. Curtatone of Somerville, Massachusetts has forged a reputation for being one of the most innovative mayors in the United States, embracing data-driven decision making and employing systems-based solutions to community issues. He has been an innovator in healthy city initiatives and spearheaded a comprehensive net-zero action plan for his city with a strong focus on equity. He has also been a leading proponent of public and active transit. In 2014, Somerville opened the first new station in Greater Boston's core light rail transit system in 27 years, and next year it will open six more new stations as part of the first major expansion of that system since the 1980s. In addition, during his time in office Somerville has built a network of more than 40 miles of bicycle lanes inside a city of just 4.1 square miles. In recent years he has advocated for 100% clean transit and making transit free in order to shift people to a more climate-friendly method of personal transportation. In January, Mayor Curtatone will complete his term for elected office and become the new president of the Northeast Clean Energy Council.