Sunday, May 8, 2011

BNC Renewables and efficiency cannot fix the energy and climate crises (part 1)

Renewables and efficiency cannot fix the energy and climate crises (part 1)

Barry Brook | 9 May 2011 at 12:00 AM | URL: http://wp.me/piCIJ-1bz

We must deal simultaneously with the energy-resource and climate-change pincers
The modern world is caught in an energy-resource and climate-change pincer. As the growing mega-economies of China and India strive to build the prosperity and quality of life enjoyed by citizens of the developed world, the global demand for cheap, convenient energy grows rapidly. If this demand is met by fossil fuels, we are headed for an energy supply and climate disaster. The alternatives, short of a total and brutal deconstruction of the modern world, are nuclear power and renewable energy.
Whilst I support both, I now put most of my efforts into advocating nuclear power, because: (i) few other environmentalists are doing this, whereas there are plenty of renewable enthusiasts  (unfortunately, the majority of climate activists seem to be actively anti-nuclear), and (ii) my research work on the energy replacement problem suggests to me that nuclear power will constitute at least 75 % of the solution for displacing coal, oil and gas.

Prometheus, who stole fire from the Gods and gave it to mortal man
In the BraveNewClimate blog, I argue that it’s time to become “Promethean environmentalists”. (Prometheus was the defiantly original and wily Greek god who stole fire from Zeus and gave it to mortals, thus improving their lives forever.) Another term, recently used by futurist Stewart Brand, is “Ecopragmatists”. Prometheans are realists who shun romantic notions that modern governments might guide society back to an era when people lived simpler lives, or that a vastly less consumption-oriented world is a possibility. They seek real, high-capacity solutions to environmental challenges – such as nuclear power – which history has shown to be reliable.
But I reiterate -- this strong support for nuclear does NOT make me 'anti-renewables' (or worse, a 'renewable energy denier', a thoroughly unpleasant and wholly inaccurate aspersion). Indeed, under the right circumstances, I think renewables might be able to make an important contribution (e.g., see here). Instead, my reticence to throw my weight confidently behind an '100% renewable energy solution' is based on my judgement that such an effort would prove grossly insufficient, as well as being plain risky. And given that the stakes we are talking about are so high (the future of human society, the fates of billions of people, and the integrity of the biosphere), failure is simply not an option.
Below I explain, in very general terms, the underlying basis of my reasoning. This is not a technical post. For those details, please consult the Thinking Critically About Sustainable Energy (TCASE) series -- which is up to 12 parts, and will be restarted shortly, with many more examples and calculations.
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Renewables and efficiency cannot fix the energy and climate crises (part 1)


Boulton and Watt's patented steam engine
The development of an 18th century technology that could turn the energy of coal into mechanical work – James Watt’s steam engine – heralded the dawn of the Industrial Age. Our use of fossil fuels – coal, oil and natural gas – has subsequently allowed our modern civilisation to flourish. It is now increasingly apparent, however, that our almost total reliance on these forms of ancient stored sunlight to meet our energy needs, has some severe drawbacks, and cannot continue much longer.
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