Kiel,

Australien National University: Biofuel breakthroughs bring ‘negative emissions’ a step closer

"The use of biofuels helps reduce human greenhouse gas emissions. That’s one reason why some petroleum companies offer petrol containing up to 10% ethanol (a biofuel). But if we are to have any real chance of avoiding catastrophic climate change, it is not enough to reduce our emissions; we must put the process into reverse. We must aim for “negative emissions”. This means removing carbon dioxide from the atmosphere, and ideally returning to pre-industrial atmospheric CO₂ levels. This is a daunting task: the present atmospheric concentration is 410 parts per million (ppm), compared with around 280ppm before the Industrial Revolution."

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