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Subject: biofuel produces more greenhouse gas than oil

Author:
larry
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Date Posted: 23:38:58 09/21/07 Fri

i have been saying it for years. now the studys are coming in.

Measurements of emissions from the burning of biofuels derived from rapeseed and maize have been found to produce more greenhouse gas emissions than they save.

Other biofuels, especially those likely to see greater use over the next decade, performed better than fossil fuels but the study raises serious questions about some of the most commonly produced varieties.

Rapeseed and maize biodiesels were calculated to produce up to 70 per cent and 50 per cent more greenhouse gases respectively than fossil fuels. The concerns were raised over the levels of emissions of nitrous oxide, which is 296 times more powerful as a greenhouse gas than carbon dioxide. Scientists found that the use of biofuels released twice as much as nitrous oxide as previously realised. The research team found that 3 to 5 per cent of the nitrogen in fertiliser was converted and emitted. In contrast, the figure used by the International Panel on Climate Change, which assesses the extent and impact of man-made global warming, was 2 per cent. The findings illustrated the importance, the researchers said, of ensuring that measures designed to reduce greenhouse-gas emissions are assessed thoroughly before being hailed as a solution.
http://www.timesonline.co.uk/tol/news/uk/science/article2507851.ece

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Replies:

Subject Author Date

Re: biofuel produces more greenhouse gas than oil Duncan7 08:34:38 09/26/07 Wed

Ethanol producers killing workers -- Larry, 10:26:03 09/29/07 Sat

Re: Ethanol producers killing workers -- Duncan7, 16:06:53 09/29/07 Sat
Ever heard of coal miners' black lung? -- Ex-bushy, 14:21:06 09/30/07 Sun

People die of many things... -- DE, 14:24:29 09/30/07 Sun
The value of all human life is ... -- DE, 14:25:46 09/30/07 Sun
Re: Ever heard of coal miners' black lung? -- Duncan7, 15:05:35 09/30/07 Sun

Well I dont know about the chicks part... -- DE, 21:21:05 09/30/07 Sun

Ever hear of strip mines? Here in Montana, we don't get coal -- Curmudgeon, 08:40:09 10/09/07 Tue