燃烧化石燃料需要我们付出代价,这样的代价也许是难以承受的。
Burning fossil fuels has a cost - perhaps an unbearable one.
随着这一技术达到商品化水平,精炼这些生物燃料需要到农村,并且为美国人提供很好的工作。
And as this technology reaches commercialization levels, refineries producing these biofuels will need to dot the countryside, providing good paying jobs for Americans.
贝兹说:“你可以在30年之内让一棵树成材。 而石化燃料需要2亿到3亿年的时间才能形成。”
"You can grow a tree in 30 years, versus your fossil fuel which takes two-or-three hundred, million years to form the carbon fuel," says Bates.
All right, so I'm burning some energy, I'm burning some fuel to do this somehow, to get that work to happen.
而这个路径需要先加热再冷却,这样,我需要能量来源,比如燃料,来完成做功。
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