Canadian journalist Klein is a successful anti-capitalist polemicist with a large following. Jeremy Williams offers a balanced review of Klein’s argument that the emerging concern for climate change and its consequences is a belated call to action against the dysfunctions of the role of capital in fuelling economic growth. A much more critical review is provided by Terence Corcoran in the National Post. Polemicists are generally vigorous in shooting down what exists and calling for revolutionary change, but decidedly weak in proposing how such change might, in detail, be brought about other than by ‘mass movements of ordinary people’. However, the long-term details of a sustainable, localised, steady-state economic, post-growth future are receiving much attention by far less polemical thinkers, scientists, activists and writers.