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<p>even though it releases carbon dioxide, carbon dioxide is 23 times less of a greenhouse gas than is methane. Biofuels represent a sustainable partial replacement for fossil fuels, but their net impact on <a href="page.php?w=greenhouse_gas_emissions">greenhouse gas emissions</a> depends on the agricultural practices used to grow the plants used as feedstock to create the fuels. While it is widely believed that biofuels can be <a href="page.php?w=carbon_neutrality">carbon neutral</a>, there is evidence that biofuels produced by current farming</p><p>
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