Although BP plans to start selling the stuff in the next few weeks (mixed with petrol, to start with), the truth is that butanol is not all that much better than ethanol.

• 英国石油公司（BP）计划在几周后开始销售该产品（开始阶段会将丁醇混合汽油），但事实是丁醇比乙醇强不到哪儿去。