must begin to decline during this century (Hoornweg et al. 2013) and that we should contemplate the peak of everything due to the imminent depletion of many mineral resources (Heinberg 2010; Klare 2012)? Should we then view the future of mass consumption with equanimity or with increasing foreboding? Or, to rephrase it by reusing the labels chosen for the title of a recent book examining the two polar positions, should we listen to prophets of environmental perils or ignore them because the salvation will come from inventive wizards (Mann 2018)?
