After years of discussion about "cessation of chlorine chemistry", the study entitled "Conversion of Chlorine Chemistry" [1] commissioned by the Environmental Ministry of the State of Hesse in Germany and undertaken by Prognos AG provides the very first detailed comparative ecological and economical assessment of production process and products of "chlorine chemistry" and industrially feasible alternatives and presents a strategy for partial transformation. This accomplished on the basis of a systematic assessment of risks and benefits, as demanded by the Geman parliametary commission "Protection of Humankind and the Environment".