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Sustainable biofuels: What is the way out?
Apr 02: Biofuels are an essential renewable energy resource, with 40% (90 exajoules) of renewable energy resources projected to come from biofuel sources by 2050.
8In order to meet these projected energetic demands, biofuel production must be increased from the current annual biofuel yield of 50 exajoules. Sustainable intensification of pastureland, or the increase of livestock yield in kilogram's per hectare, is a key approach to making more land available for these bioenergy crops, like high-yielding grasses and short-rotation coppice wood, without incurring the carbon debt associated with conversion of farmland from forest.
8However, pastureland intensification is often criticized as a potential threat to pastureland biodiversity – there are cases of unsustainable intensification of pastureland leading to ecological degradation.
8So how does one approach sustainable intensification of pastureland that have had a neutral or positive effect on biodiversity of the affected areas?
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