Dr. Barbara Kates-Garnick helps us understand the process of Energy Transition from fossil fuels to renewable energy. It is not a simple process, and will take years to accomplish, but it is important that we begin now on the journey. She explains what needs to be modified, what investment it will take, and the benefits to be reaped through taking the time now to begin. Dr. Kates-Garnick is the former Under Secretary of Energy of the Commonwealth of Massachusetts, responsible for guiding energy policy. She is now a professor at the Fletcher School at Tufts University.