The realisation of many environmental ventures requires funding from external parties, which is not always easy to obtain. Crowdfunding offers a new potential source of financing, which is frequently expected to favor environmentally oriented ventures. However, little is known if and how crowdfunding can be effectively used for such ventures. The article empirically examines this phenomenon by analysing how the environmental orientation of crowdfunding projects influences their likelihood of successful funding. Surprisingly, no positive connection between environmental orientation and crowdfunding success can be observed in the dataset used. Therefore, reasons for the relatively low rate of success of environmentally oriented crowdfunding projects are discussed and potential measures to assist in the more effective use of crowdfunding in the context of sustainability are suggested.