Climate engineers around the world are developing technologies that aim to reflect sunrays away from Earth. This intervention, they argue, could cool the climate and help address concerns about rising global temperatures.But skeptics say messing with Mother Nature could have unintended consequences. Should climate engineers try to dim the sun? FOR THE MOTION: Clive Hamilton - Professor & Author, "Earthmasters: The Dawn of the Age of Climate Engineering" Anjali Viswamohanan - Scholar, Oxford AGAINST THE MOTION: David Keith - Professor, Harvard & Founder, Carbon Engineering Ted Parson - Professor, UCLA