The internet may even pose a more precise analogy to “Clean-Tech” businesses than others insofar as the product is fundamentally important to us, and not merely a “want” which gives rise to consumption. In the case of the internet, the promise of the technology itself has more than been fulfilled, even if the promises of a great number of commercial concerns related to it have not.
I venture to say that an economic movement which is based on our survival and well being as humans may be fundamentally too important to approach merely as a capitalist endeavor. Historically, novel technologies, even when related to existing demand, are difficult to efficiently monetize. Shifts in behavior however, (as they relate to those technologies) are a better bet. How difficult will it be to create a substantial economic enterprise in an industry which is neither novel, nor benefited by consumption per sae?