Gerald C. Nelson

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Biofuels are liquid sunlight. In effect, we use plants to convert raw solar energy into a liquid (ethanol or biodiesel) that can be used as an energy source for our transportation systems. The question this chapter asks is whether this conversion process is the best way to make use of solar energy. Photovoltaics clearly dominate plants in terms of technical(More)
We're being warned of future grain failures—not by the dreams of a biblical Pharaoh, but by modern computer model predictions. Climate science forecasts rising temperatures, changing rainfall patterns, and episodes of increasingly extreme weather, which will harm crop yields at a time when the world's growing population can ill afford declines, especially(More)
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