French environmental taxes are not really ecologically oriented. Their main aim is to raise revenues. Clear signs of this inappropriate direction are given by the large share of the energy taxes and by the low level of most tax rates, which for the most part, are only implicit tax rates on the polluting goods. An ecological tax reform would imply a global green tax shift with tax rates proportionate to the marginal damages. The success and the acceptation of such a reform by the taxpayers rely on the chosen recycling mechanism for the tax revenues, on government’s efforts in information and pedagogy, on transparency about the policy choices but also, somehow paradoxically, on audacity of actions.