Astrophysicist and self-proclaimed science heretic Freeman Dyson gives a lecture challenging some commonly-held beliefs.
He claims that global climate change is not as catastrophic as we may believe, but that we can take advantage of the higher carbon dioxide in the atmosphere by planting billions of trees and changing our farming practices in order to create more topsoil.
He also discusses his book: The Sun, The Genome, and The Internet: Tools of Scientific Revolution to address the rural-to-big-city population migration problem.