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I am yet to be convinced that the 'solar roadway' is viable or that it makes more sense than just putting long arrays of PV panels along side the highway. Renewable energy can supply much more energy than we need.
On the food front, we are currently using way more energy to grow our food than we need to, and we waste far too many calories factory farming meat animals, when they could be raised on small farms where they fit into and support the full cycle of life. There is no waste in farming when it is done right. Locally grown food is where we have to get to. Factory farming is unsustainable.
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