Msgr. Sullivan speaks with Patrick Carolan, Executive Director, Franciscan Action Network (FAN). Patrick and Monsignor will be speaking about Catholic participation in this Sunday’s People’s Climate March. Also on the show is Veerabhadran Ramanathan, Ph.D, Director, Center for Atmospheric Sciences at Scripps Institution of Oceanography at UC-San Diego and Member of Pontifical Academy of Sciences. Prof. Veerabhadran Ramanathan  will be speaking to Msgr. Sullivan about the science of climate change.