Reply to post: Re: Alternative fuels

The next Cuban gristle crisis: US Navy warship powered by beef fat

John Arthur

Re: Alternative fuels

@ x 7: Rubbish. 'self-regenerating' and 'sustainable' are not the same thing. Sustainable forests are usually well managed by people, not by nature. Trees are mature long before the 'three hundred years' you quote and those that are that age are past their best and, yes, diseased and dying. It's called old age.

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