Richard B. Alley, the 2014 recipient of the Arthur L. Day Prize and Lectureship, presents the 2015 National Academy of Sciences Day Prize Lecture series on a variety of topics including climate change, energy, and the environment at locations throughout the United States. This lecture, "Good News in the Greenhouse? The big picture on energy, the environment, and our future", was presented at Wilson College on November 10, 2015.