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25.1 Will an ordinary prairie grass become the next biofuel?
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25.2 Biofuels are a potentially important alternative to fossil fuels.
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25.3 Biofuels can come from unexpected sources.
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25.4 Turning grass into gas is less environmentally friendly than it sounds.
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25.5 Tilmanâs experiments showed the importance of biodiversity.
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25.6 There is another rising biofuel star: algae.
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25.7 There are many reasons why biofuels have not solved our dependence on fossil fuels.
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25.8 Multiple solutions will be needed to help replace fossil fuels.
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25.9 Despite ongoing controversies and setbacks, the future of biofuels looks bright.
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25.10 Understanding The Issue
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25.11 Analyzing The Science
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25.12 Evaluating New Information
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25.13 Making Connections
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