I found an excellent book talking about realistic sustainable solutions. It is from 2008&#x2F;2009 and so solar costs are already dramatically less, but is still a great read.<p><a href="http:&#x2F;&#x2F;www.withouthotair.com&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.withouthotair.com&#x2F;</a>