Paul R. Ehrlich, via a kind reader’s email:

Arguably, no challenge faced by humanity is more critical than generating an environmentally literate public. Otherwise the present “business as usual” course of human affairs will lead inevitably to a collapse of civilization. I list obvious topics that should be covered in education from kindergarten through college, and constantly updated by public education and the media. For instance, these include earth science (especially climatology), the importance of biodiversity, basic demogra- phy, the problems of overconsumption, the fact that the current economic system compels producers and consumers to do the wrong thing environmentally, and the I=PAT equation. I also summarize less well-recognized aspects of the environmental situation that are critical but are only rarely taught or discussed, such as the nonlinear effects of continued population growth, the impacts of climate disruption on agricultural production, and the basic issues of human behavior, including economic behavior. Finally, I suggest some of the ways that this material can be made a major focus of all education, ranging from using environmental examples in kindergarten stories and middle school math to establish an international discussion of the behavioral barriers to sustainability.
Global human society is challenged in a way never before seen in human history. For the first time, humanity is fundamentally altering global ecosystems in ways that can threaten the continuation of our social order. The struggle to develop appropriate modes of behavior compatible with maintaining vital ecological processes is the great challenge of the twenty-first century. Educational systems are pivotal to meeting this challenge by equipping people with the knowledge and values to understand and address the human predicament. Thus, environmental education needs to be a vital component of all educational processes in developed nations from kindergarten to doctoral studies and continuing through the use of mainstream and social media.
However, in my view, environmental education is given much too little attention in the school systems of the USA and other rich nations, and is often poorly timed and structured when it is delivered. The situation is only marginally better in colleges and universities, despite the good efforts of environmental educators. Perhaps the best evidence for the inadequacy of environmental education is that “out of the classroom, people have failed to make the link between their individual actions and the environmental condition” (Blumstein and Saylan 2007, 2011). A basic problem is educational systems for the young are designed to fill people with various packages of “tailored” knowledge, and then send them “out in the world” to use that knowledge, especially to make a living. There is too little systematic thought given to the ever-changing needs of responsible citizens facing the culture gap–the enormous and growing gulf between the non-genetic information possessed by each individual society and that possessed by society (Ehrlich and Ehrlich 2010).