Sustainability is considered to be simultaneously based on the economy, environment, and society, which interacts to promote social equity while being viable and bearable to promote a sustainable state. However, there have been critics to the possibility of achieving sustainability, either because the Social Sciences says the equity is not possible/bearable in a capitalist economy or due to entropic limits stated by the Natural Sciences, indicating that sustainability is not viable. Facing what seems to be unsustainability of the human existence on Earth, we can direct education to unveil the myth of our salvation by scientific and technological development. It requires a critical-reflexive position towards knowledge and practices. Examples will especially be taken from the area of Green and Sustainable Chemistry (Education).