Our colleague from New Brunswick, Alan Robock, will be guest lecturing in Professor Cymie Payne’s climate change class.   Alan is one of the world experts in atmospheric particles - whether from volcanoes, nuclear fallout (he was one of the key scientists who demonstrated "nuclear winter") or geoengineering. He'll be talking about basic climate change science and about geoengineering. Tuesday, January  24, 6-9pm, Room E112