Energy from Agricultural Commodities - Bio-gas Pioneer Christoph Martens | Made in Germany
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05.09.2012
00:04:30
Описание
The boom in the bio-gas industry has led to Germany increasing its corn production to 810,000 hectares. But these large fields have their detractors. Food or fuel - which is more important? Find out more: dw.de/dw/episode/0,,16172427,00.html
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