The future is green, and many of the largest cities in the United States are making moves with bicycle infrastructure. Boston in particular has taken an aggressive approach, with a five-year action plan that, among other promises, states it will build out 21 additional miles of cycle track.The cost of the construction is estimated at $30 million, but it is a small price to pay for a city that boasts nearly 700,000 inhabitants, and nearly 30,000 bike trips per day in just a few locations that were recorded in a recent study on bike commuting rates in Boston. All of this is part of Boston’s Climate Action Plan, which has made it a goal to increase bicycle commuting rates ten percent by 2020. Although it might seem like a lot, the number of bike trips more than doubled from 1.9 to 4 billion between 2001 and 2009. 10 percent may not be unrealistic for a city that has a lot of green lanes, and plans to extend their safety precautions for bikers. The trend may extend to the rest of the United States; 43 of 70 largest cities saw cycling rates rise, due to increasing investments in infrastructure development.