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Dependence upon fossil fuels constrains our options and pollutes our environment .

对旧能源依赖的缺点限制了我们选择，并且还造成了环境的污染。

Using unrealistic values for their private-equity stakes pollutes this process .

用不现实的价值观的私募股权影响这一过程。

At least mr obama seems to have concluded that environmentalists are wrong to demand tighter regulation of fracking ; the evidence that it pollutes groundwater , one of the main claims against it , is not convincing .

奥巴马至少还认为环保主义者提出的对水力压裂技术实施更严格监管的要求是错误的；他们反对水力压裂技术的主要理由之一是这项技术技术对地下水造成污染，不过这个证据是无法令人信服的。

Yet the compulsion to meet short-term targets still pollutes accounts : chief financial officers told researchers from duke and emory universities recently they thought a fifth of us companies misrepresented results , by an average of 10 per cent of reported earnings per share .

然而实现短期目标的冲动仍会导致账目作假：首席财务官们最近向杜克大学（dukeuniversity）和埃默里大学（emoryuniversity）的研究人员表示，他们认为美国有五分之一的企业瞒报业绩，规模平均相当于公布的每股盈利的10%。