This article brings together epistemological and political philosophy approaches and investment of the dialectic of knowledge, values, and skills, by situating the whole in an uncertain world. We propose to look at the place that environmental issues have in the most recent French public education policies and in particular in the teaching programs that have been developed for the compulsory education period. We present the main themes and potential implications of Mill's philosophical work. We discuss what could be a new approach to the question of the meaning of school knowledge in a democracy. We try to briefly synthesize, on the one hand, what, according to us, distances the current programs from the horizon of such a re-examination; and on the other, what, within them, seems to open up a certain number of possibilities that are worth exploring in this domain. [ABSTRACT FROM AUTHOR]