Ecologically minded individuals and scholars have been publishing progressive works of ecotheory and criticism since the explosion of environmentalism in the late 1960s and 1970s. However, because there was no organized movement to study the ecological/environmental side of literature, these important works were scattered and categorized under a litany of different subject headings: pastoralism, human ecology, regionalism, American Studies etc. British marxist critic Raymond Williams, for example, wrote a seminal critique of pastoral literature in 1973, The Country and the City. Another early ecocritical text, Joseph Meeker's The Comedy of Survival (1974), proposed a version of an argument that was later to dominate ecocriticism and environmental philosophy; that environmental crisis is caused primarily by a cultural tradition in the West of separation of culture from nature, and elevation of the former to moral predominance. Such anthropocentrism is identified in the tragic conception of a hero whose moral struggles are more important than mere biological survival, whereas the science of animal ethology, Meeker asserts, shows that a "comic mode" of muddling through and "making love not war" has superior ecological value. In the later, "second wave" ecocriticism, Meeker's adoption of an ecophilosophical position with apparent scientific sanction as a measure of literary value tended to prevail over Williams's ideological and historical critique of the shifts in a literary genre's representation of nature. As Glotfelty noted in The Ecocriticism Reader, "One indication of the disunity of the early efforts is that these critics rarely cited one another's work; they didn't know that it existed...Each was a single voice howling in the wilderness." Nevertheless, ecocriticism—unlike feminist and Marxist criticisms—failed to crystallize into a coherent movement in the late 1970s, and indeed only did so in the US in the 1990s. In the mid-1980s, scholars began to work collectively to establish ecocriticism as a genre, primarily through the work of the Western Literature Association in which the revaluation of nature writing as a non-fictional literary genre could function. During the late-1980s poet Jack Collom was awarded a 2nd National Endowment for the Arts grant, for his ground-breaking work in this emerging genre. Collom taught an influential Eco-Lit course at Naropa University in Boulder, Colorado, for nearly two decades. In 1990, at the University of Nevada, Reno, Glotfelty became the first person to hold an academic position as a professor of Literature and the Environment, and UNR, with the aid of the now-retired Glotfelty and