In this engaging discussion, Professor Dev Niyogi reveals how urban design shapes rainfall patterns, introducing the intriguing 'wet island effect.' Dr. Megan Evans questions the efficacy of carbon trading schemes, shedding light on unexpected pollution consequences. Meanwhile, Professor Toni Erskine explores the ethical dilemmas of AI in warfare, addressing its impacts on decision-making and the potential loss of human judgment. Together, they tackle pressing issues at the intersection of climate change, urban planning, and military technology.