In 2007, Mayor Bloomberg decided to plant trees in the streets of New York. To make the city greener, one million trees would be planted in a decade. The initiative cost the city $400 million… and is now near its goal. As Adélie Pontay reports, the neighborhoods that needed the most trees were also some of the poorest areas in the city. She went for a walk around the leafy streets of East New York in Brooklyn to see how the neighborhood has changed.