To avoid environmental and health risks, German Fred Butler USES a new technology that replaces solvents like perchloroethylene with carbon dioxide.

为了避免对环境和健康风险，德语，李华明巴特勒利用一种新技术，取代溶剂一样，氯乙烯与二氧化碳。

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Pathogens can regrow in appropriate conditions in the soil after being applied with the sledge into the soil, thus posing environmental and health risks.

污泥中的病原物进入土壤后有再发的现象，存在环境与健康风险。

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Pay Drechsel, an environmental scientist, argues that the social and economic benefits of using untreated human waste to grow food outweigh the health risks.

环境科学家佩·德雷塞尔认为，用未经处理的人类粪便来种植粮食，这种做法的社会和经济效益超过了健康风险。

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(OMITTED) Remais,an assistant professor at Emory University's Rollins School of Public Health in Atlanta, He says the growing economy is fueling environmental risks such as air pollution and chemical toxins, while age-old environmental challenges remain.

VOA: standard.2010.04.07

Big business -- namely, the gas industry -- is aggressively objecting to the allegation in "Promised Land" that fracking poses environmental and health risks.

CNN: Hollywood movies can (mis)educate us

But coal mining and combustion produces health and environmental risks that dwarf those associated with natural-gas production.

WSJ: Should Fracking Be Regulated by the Feds or the States?

In the past couple of years, dozens of localities, anticipating that the state will eventually allow drilling, have enacted local bans or moratoriums on drilling at the request of residents who have petitioned town boards saying such heavy industrial activity is inconsistent with the community character and that they fear potential health and environmental risks.

WSJ: 3rd NY town wins in court over fracking ban