2009年秋季奥巴马和共和党议程的汇合变得明显起来，邓肯跟纽特金里奇全美到处宣扬力争上游计划。
The confluence between the Obama agenda and the Republican agenda became clear in the fall of 2009, when Duncan traveled the country with Newt Gingrich to promote Race to the Top.
对上游碳资源征税是为碳排放定价的一种简单方法，尽管一些国家可能希望使用其他方法，例如碳排放交易计划。
A tax on upstream carbon sources is one easy way to put a price on carbon emissions, although some countries may wish to use other methods, such as emissions trading schemes.
现在，一些上游国家，包括埃塞俄比亚和乌干达都在计划兴建水电坝。
Currently, several upstream nations, including Ethiopia and Uganda, are planning hydroelectric dams.
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