Really? Imagine the argument: "Whether you believe zombies are real or not is beside the point. ... We can't run the risk." Clearly one's willingness to undertake these sorts of preparations depends completely on whether the perceived danger is real.
Is it? I don't know. I've pored over some of the research but can't hazard a guess as to whether the alarmists or the skeptics are right. Weather is incredibly complicated and multifactorial, and as a non-scientist, I find it difficult to understand. Both sides of this heated debate (couldn't resist) believe their opponents are acting in bad faith. The warmists cast everyone on the other side as paid shills for energy companies, and the skeptics charge that warmists are chasing grant money. A little charity in both directions would go a long way.
Like other undecideds, I am often repelled by the hysteria of climate change zealots -- and by their evident hypocrisy. Surely, if you believe that Earth might be going the way of Venus, you'd support the widespread use of nuclear power? Still, I'm willing to grant that there might be something to worry about -- maybe a lot. A majority of climatologists believe this. They may be wrong, but surely it would be prudent to take steps that make sense on other grounds and might also address climate change.
In this spirit, it's refreshing to see proposals, like Bloomberg's, that focus on adjusting to rising temperatures rather than vain attempts to halt the world's use of fossil fuels. Rapidly industrializing countries like China (the world's chief emitter of greenhouse gases) and India (the fourth largest contributor) are not going to sacrifice development on the altar of environmentalism.
We ought to celebrate new technologies like fracking. An environmentalist was asked why he supported fracking. His answer was one word: coal. Fracking provides abundant, inexpensive, domestic energy to Americans while also reducing carbon emissions. America's greenhouse gas emissions have dropped more than any other nation's in the past five years as we've reduced our reliance on coal in favor of natural gas. And our technological leaps won't be kept from the rest of the world, they'll be shared.