In the end, aren't coal and oil biofuel? Just fuels that take millions of years to make. That seems to be proof by counterexample that not <i>all</i> biofuels are useless. But at doublerebel says, the headline should really be "we should not grow plants for biofuel production". Which is not the same thing at all.
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In the end, aren't coal and oil biofuel? Just fuels that take millions of years to make. That seems to be proof by counterexample that not <i>all</i> biofuels are useless. But at doublerebel says, the headline should really be "we should not grow plants for biofuel production". Which is not the same thing at all.
Taken to the extreme, yes. In practicality, the term is reserved for the kind that can be made in quite a bit less than millions of years.
Compare "natural materials" and "natural ingredients". In the end, it's all made from naturally occurring atoms, right?
Ultimately, our energy is almost all solar (nuclear fission being the big exception, geothermal being another).