If you&#x27;re looking for evidence that non-oil sources will get more profitable, less expensive and widely available in the future, Ramez Naam has a series of excellent blog posts (with lots of cited data) that are a good starting point. The first is from mid-August of 2015, and the last in mid-October, so they are timely as well:<p>1. <a href="http:&#x2F;&#x2F;rameznaam.com&#x2F;2015&#x2F;08&#x2F;10&#x2F;how-cheap-can-solar-get-very-cheap-indeed&#x2F;" rel="nofollow">http:&#x2F;&#x2F;rameznaam.com&#x2F;2015&#x2F;08&#x2F;10&#x2F;how-cheap-can-solar-get-very...</a>
2. <a href="http:&#x2F;&#x2F;rameznaam.com&#x2F;2015&#x2F;08&#x2F;30&#x2F;how-steady-can-the-wind-blow&#x2F;" rel="nofollow">http:&#x2F;&#x2F;rameznaam.com&#x2F;2015&#x2F;08&#x2F;30&#x2F;how-steady-can-the-wind-blow...</a>
3. <a href="http:&#x2F;&#x2F;rameznaam.com&#x2F;2015&#x2F;10&#x2F;14&#x2F;how-cheap-can-energy-storage-get&#x2F;" rel="nofollow">http:&#x2F;&#x2F;rameznaam.com&#x2F;2015&#x2F;10&#x2F;14&#x2F;how-cheap-can-energy-storage...</a>