The Cornerstone School is a Montessori School in Stratham, New Hampshire, and sustainability is quite naturally part of the curriculum. Students learn about the ways their behavior affects the world around them, from small things like recycling and energy use, to big things, like how their school has harnessed the sun to power most of its energy needs.

See our video where Head of School Lee Ann Robertson talks about this school's journey to a solar investment, and see a heartfelt and inspiring video of its students celebrating the sun when the system was turned on in early November.