Extended Producer Responsibility in Waste Regulations in a Multilevel Global Approach: Nanotechnology as a Case Study - European Energy and Environmental Law Review View Extended Producer Responsibility in Waste Regulations in a Multilevel Global Approach: Nanotechnology as a Case Study by - European Energy and Environmental Law Review Extended Producer Responsibility in Waste Regulations in a Multilevel Global Approach: Nanotechnology as a Case Study 21 5 European Energy and Environmental Law Review