Human beings have poured billions of tons of concrete into infrastructure that is designed for the climate to be the way it was in the twentieth century (or ear

Human beings have poured billions of tons of concrete into infrastructure that is designed for the climate to be the way it was in the twentieth century (or earlier). Sure, there may be more rainfall in some places, but we would have to build new dams and aqueducts, or expand the existing ones, to take advantage of that. Meanwhile, the stuff we already built may underperform its design goals. The aggregate cost of redesigning the infrastructure would be huge. To make matters worse, we know that at least one thing — direct heat hazards to humans, crops and livestock — is very bad about global warming. Rising wet-bulb temperatures are no joke. Meanwhile, existing construction processes emit lots of greenhouse gases. That compounds the first problem, since reducing emissions conflicts (today) with building infrastructure. Any hydrological or climatic "benefits" of global warming are very likely to be outweighed by infrastructure inertia that inhibits our ability to enjoy them, plus the heat thing.