biofuel 再生能源研发正当其时. 9619/418

1.Pond scum gets its moment in the limelight. 来自 Wsj Apr.11,2009. 从google 进去,得全文.
2.Appointments top BP scientist nominated for DOE post.来自 C & EN apr.6.2009.从google进去
3.Supplanting oil. 耒自C & EN Apr.13.2009. "For a lot of these products,companies can compete with oil at $45 to $50 per barrel."从google进去,有些问题. P 22-P26.