Renewables are NOT a Blight, stupid thinking is.
I am fully in favor of pursuing safe nuclear energy to divert our course away from fossil fuels but let us not argue nonsense with regard to implementing renewable energy sources. Yes, it will cost lots in money and materials and have an initial substantial negative impact on CO2 levels; implementing any technology to offset the fossil beast will, in the near term. Frankly, I consider the argument being put forward against renewables because of their upfront cost is bad science and bad economics! The cost of doing nothing is even greater with no future benefit whatsoever (unless you are the next species waiting in line to do dumb things to your world). We, above all should not forget that the cost of implementing a fossil fuel economy has put us at this juncture in the first place and that cost is not small, or this would be a moot discussion...
What is most important is to implement technologies at a rate and in a manner where their impact can be OFFSET AS SOON AS POSSIBLE and almost all renewable technologies are capable of this. In fact it is important to note that all of the various technologies, wind, solar, geothermal, bio-energy and even hydro are continuously evolving at a rate far greater then seen in the fossil fuel world. Arguments against efficacy and effectiveness of renewables should account for this trend, not ignore it. Oh, and the fact is that storage technologies are catching up fast too, making renewables even more effective.
And the arguments put forward by many people (engineers and scientists who should know better, shame on them for being so blindsided) regarding the environmental impact of renewables is absurd. Those impacts are NOTHING compared to the impacts of oil, gas and coal on our world today. The simple fact is that all of these renewable technologies can be implemented on the existing footprint of current infrastructure in our cities and on our roads today. We do not need to use one square foot of new wilderness to develop the renewable resources to power tomorrow, we can easily make our current footprint do double (or treble) duty. As a bonus we get rid of some infrastructure that would no longer be needed to transport energy from far away to near at home. The real key is NOT to get locked into one technological solution, so we can evolve and improve continuously, rather than get locked into a singular paradigm, again.
I am beginning to see humanity's major obstacle is between it's ears...