Despite the increased strategic importance of environmental innovation on the one hand and corporate social responsibility on the other, there are still few studies that show firm voluntary measures create a primary determinant of environmental changes. First, we clarify the meaning of voluntary measures and CSR. Second, we utilize a survey carried out in Luxemburg on firm CSR practices jointly with the Community Innovation Survey 2008 (CIS 2008). We merge them and show through the estimation of a probit model that CSR is an important factor that explains environmental innovation. Thanks to a question from CIS 2008 we can contribute to the literature by developing a new indicator measuring the scale of the positive impacts on the environment coming from the firm technological innovation capacity. A negative binomial regression enables us to estimate a significant and positive effect of CSR and firm value on this scale.