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There are some lines that seem to be borderline hyperbole (“You would have been better off just burning fossil fuels in the first place”) but it does highlight
by manfredo 7y ago
There are some lines that seem to be borderline hyperbole (“You would have been better off just burning fossil fuels in the first place”) but it does highlight that as far as renewable energy goes solar and wind have some major shortcomings and difficult scalability problems. The percentages of the earth's surface that needs to be covered in solar panels to meet global energy demand ranges from 2-8% depending on whether the estimate factors in efficiency losses in storage, weather, and other factors. That amount of land consumption is going to have massive ecological impact. Solar's energy density and intermittency are such that it just takes up a huge amount of land.
Nuclear power remains the only renewable source of energy that demonstrated ability to provide the majority of a nation's electricity consumption, besides geographically limited options like hydroelectricity and geothermal power. Solar has a place on building rooftops to supplement electricity generation in otherwise wasted space, but it doesn't make sense to choose it as a primary power source.
- aiscapehumanity 7y agoThis, and we need to encourage more fusion investment.
- crispinb 7y agoI haven't seen the film yet, but I've heard Moore talk about it on his podcast. Nuclear vs fossil vs renewables isn't the point at all. It's about how the increasing size of the so-called 'economy' (of which energy production is just one component), regardless of the tech used, is a road to inevitable collapse. Our choices, on this view, aren't between types of growth; they are between collapse or degrowth. Agree or disagree, but that seems to be the point of the film, to which nuclear energy is scarcely relevant.