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 .
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 .
