translate English to French: In the past, stakeholders have raised pollution havens and regulatory chill as issues of concern related to the environmental impacts of investment treaties.
Par le passÃ©, des intÃ©ressÃ©s ont Ã©voquÃ© la crÃ©ation de refuges pour pollueurs et la paralysie de la rÃ©glementation parmi les effets environnementaux des traitÃ©s sur l’investissement qui suscitent leur inquiÃ©tude.