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In late 2013, the US Environmental Protection Agency (EPA) proposed – for the first time ever – a slight slacking of the 2014 renewable fuel standard. The reason was that the US is coming up on the 'blend wall,' the overall level of ethanol in the national gasoline supply where adding any more biofuel would push the average blend in 'normal' gas above 10 percent. As we know, this is a contentious issue. So contentious that, as the EPA collects comments about the rule change, almost 1