石油高峰即將到來;生物燃料來拯救?

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  • #3363
    馬丁
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      Having read of Peak Oil lately, I was piqued by cover of August Discover – as had article on biofuel. Read this, and learned of improvements in obtaining ethanol from crops including maize (corn). Hmm, maybe biofuels hold out hope for the future – even for gas guzzling motor vehicles…. But, there are problems too. UK journalist George Monbiot has berated biofuels,

      in an article: Worse Than Fossil Fuel Biodiesel enthusiasts have accidentally invented the most carbon-intensive fuel on earth 包括:

      引用:
      In 2003, the biologist Jeffrey Dukes calculated that the fossil fuels we burn in one year were made from organic matter “containing 44×10 to the 18 grams of carbon, which is more than 400 times the net primary productivity of the planet’s current biota.”(1) In plain English, this means that every year we use four centuries’ worth of plants and animals. …

      “The demand for biodiesel,” the Malaysian Star reports, “will come from the European Community … This fresh demand … would, at the very least, take up most of Malaysia’s crude palm oil inventories”(7). Why? Because it’s cheaper than biodiesel made from any other crop. In September, Friends of the Earth published a report about the impacts of palm oil production.

      “Between 1985 and 2000,” it found, “the development of oil-palm plantations was responsible for an estimated 87 per cent of deforestation in Malaysia”(8). In Sumatra and Borneo, some 4 million hectares of forest has been converted to palm farms. Now a further 6 million hectares is scheduled for clearance in Malaysia, and 16.5m in Indonesia. Almost all the remaining forest is at risk….

      – yikes! Reduce oil demand by increasing deforestation?! Not good, and especially not good to read as I plan a trip to Borneo re forest conservation.

       

      #4326
      馬丁
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        國際鳥盟表示希望生物燃料確實能幫助環境;但也高度關注種植能源作物可能對生物多樣性造成重大負面影響。例如,歐洲的農田鳥類面臨壓力;東南亞增加油棕種植的計畫威脅著雨林野生動物。
        簡短資訊以及 Birdlife 文章的連結和會議的一些資訊:
        不可持續的生物燃料威脅環境

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