Google’s ‘Moon 2.0′ Lunar X-Prize is challenging private companies to a race to the moon [and various other Lunar tasks] – suggesting that the moon will be n important resource for the Earth, as silicon can be mined there, and used to construct large solar arrays to power our cities with ‘green’ energy.
Far fetched? Probably – but leave it to Google to get people excited about traveling to the moon again [they should team up with Apple, then they'd be unstoppable], and to give us a semi-legit reason for going.
One problem I see, however, is that while it would be ‘green’ energy [assuming any of this were to happen], it will still be run by private companies and sold to us for whatever they [or the 'market'] decide its worth. One commonly overlooked issue with sustainability is its social side. If all the power is being sold off for the largest profit possible, controlled by the few and rationed to the masses, then its still not 100% ‘sustainable’.
But hey, let’s hope it works.