Another example of technological innovation around the margins (and the institutions that support it) working to keep us from falling into the Malthusian trap. I'm not a big ethanol fan, but things that can be done to make waste byproducts more useful (e.g. the building of the first cellulose ethanol plant) to help in the short run, might just help us get closer to a long-run solution with wind, solar, geothermal, etc.
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