An inability to build & maintain infrastructure is a common feature of times of scarcity. It's hard to organize people toward a common goal when there's an imm

An inability to build & maintain infrastructure is a common feature of times of scarcity. It's hard to organize people toward a common goal when there's an imminent threat to survival. Sure, in theory there's plenty of water on the globe, and it's just a matter of getting it to population centers. In theory all we have to do to avert global warming in the first place is reduce our CO2 emissions. In practice both of those goals are essentially impossible, because it's a coordination problem and coordination problems are significantly harder than technological and economic problems.