I wonder what Klein's use of the description "deregulated capitalism" means in this context. Does she mean that "regulated capitalism" would have averted the worsening of the earth's eco-system? 

Klein describes Sweden, Denmark and Uruguay as "democratic socialists." I think that is inaccurate. As a leftist she should be aware these countries are "social democracies." In Sweden, for example, approximately 90% of resources and companies are privately owned. High taxation, generous welfare state, etc does not make an economy socialist.

"My focus is the central premise of the piece: that the end of the 1980s presented conditions that “could not have been more favorable” to bold climate action. On the contrary, one could scarcely imagine a more inopportune moment in human evolution for our species to come face to face with the hard truth that the conveniences of modern consumer capitalism were steadily eroding the habitability of the planet. Why? Because the late ’80s was the absolute zenith of the neoliberal crusade, a moment of peak ideological ascendency for the economic and social project that deliberately set out to vilify collective action in the name of liberating “free markets” in every aspect of life. Yet Rich makes no mention of this parallel upheaval in economic and political thought."

Capitalism Killed Our "Climate Momentum", Not 'Human Nature'