Two colleges in Pennsylvania, Allegheny College and Dickinson College, have reached their goals to become completely carbon neutral. In 2008, both colleges were emitting nearly 20,000 metric tons of carbon dioxide into the air of the fifth largest carbon dioxide emitting state in the country. To achieve their carbon neutral goals, each college took to implementing new systems such as planting trees, using renewable energy credits, using student engaged challenges, and more. The two colleges explained that the entirety of their goal was not to become completely carbon neutral, but rather establish an environment that encourages the community to partake in sustainable practices. Read More.