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Velpe-Mene discussieforum • View topic - 'Biobrandstof uit voedsel verbieden'

'Biobrandstof uit voedsel verbieden'

Beleidsontwikkelingen, info en discussies over het natuur en milieubeleid, beleidswerking in de afdeling (rups, water, ruilverkaveling)

Moderators: LucAdmin, margriet vos, hugo abts, robin guelinckx, Lieven_deschamphelaere

'Biobrandstof uit voedsel verbieden'

Postby hugo abts on Wed Dec 19, 2007 10:17 pm

'Biobrandstof uit voedsel verbieden'
14-12-2007 14:18


AMSTERDAM – Europa moet stoppen met de aanmaak van biobrandstoffen die gewonnen worden uit maïs, suiker, koolzaad en andere voedselgewassen. De nadelen zijn groter dan de voordelen.


Dat betoogden donderdag diverse wetenschappers in Amsterdam op een symposium over biobrandstoffen en biodiversiteit. De Wageningse hoogleraren Rudy Rabbinghe en Prem Bindraban zeiden dat ze niks moeten hebben van biobrandstoffen uit maïs, suiker of koolzaad. Ze benadrukten dat de energiewinst uit planten minimaal is. Nog geen twee procent van de benutte zonne-energie is terug te winnen als biobrandstof. Dan is de inzet van zonnepanelen een stuk rendabeler. Die halen een rendement van 15 tot 20 procent.

Landbouwareaal
Uitbreiding van het landbouwareaal is voor hen geen optie, want die heeft desastreuze gevolgen voor de mondiale biodiversiteit. Het inkrimpen van leefgebieden bevordert het uitsterven van soorten.

Houtkap
Vooral de kap van tropisch oerwoud baart volgens de wetenschappers grote zorgen. De Leidse hoogleraar Udo de Haes zei dat het tropisch oerwoud in Indonesië ruim 3000 soorten bomen en ruim 2000 soorten orchideeën telt. Daarnaast, betoogde Bindraban, vindt uitbreiding plaats op marginale gronden. ‘En marginale gronden geven marginale opbrengsten.’

Ontginning
Het zet allemaal geen zoden aan de dijk, temeer omdat bij de ontginning van bos en woeste gronden enorme hoeveelheden CO2 vrijkomen. ‘Eer je dat gecompenseerd hebt, ben je een paar decennia verder', aldus Bindraban, die pleitte voor revolutionair andere systemen. ‘'s Nachts de stekker van de auto in het stopcontact stoppen. Daar voel ik meer voor.'
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