The recently released draft report of the Intergovernmental Panel on Climate Change (IPCC) lays out in no uncertain terms that we face an insurmountable challenge in addressing climate change and its impacts. One shocking takeaway is that sea-level rise is now thought to be irreversible. Indeed, rising temperatures and changing weather patterns threaten to send some cities under water, while causing others to dry up. These opposing challenges increasingly threaten the lives and livelihoods of people in many countries as rapid urbanization is making cities even more densely populated. Floods and droughts threatening the world’s cities will force governments of the world to reevaluate the quality of their infrastructure, their disaster management strategies, and of course, their environmental footprints.