[b5u]

Land may be valuable at the moment, but that will likely change in the future when fresh, clean water will be more scarce and climate changes will render parts of Earth uninhabitable.

I'd recommend you reading this interview with M. Burry (guy who foresaw the real-estate crises in '08): http://nymag.com/daily/intelligencer/2015/12/big-short-geniu...

[gumby]

That's still a real estate issue; you're just saying that the three important factors in real estate are "location, location, and location" and that those factors aren't stable over time. Tell that to the Carthaginians.

[sandworm101]

>> fresh, clean water will be more scarce and climate changes will render parts of Earth uninhabitable.

If one wants to get all conspiracy-minded: Vancouver, Toronto ... not the warmest of cities. Neither are they in red zones for rising sea levels. And, being in Canada, have more fresh water per person than most anywhere on the planet.