 Writing in "Capitalism Nature Socialism", Doug Boucher, Peter Caplan, David Schwartzman and Jane Zara criticise eco-socialists in general (and Kovel in particular) for a deterministic "catastrophism" that overlooks "the countervailing tendencies of both popular struggles and the efforts of capitalist governments to rationalize the system" and the "accomplishments of the labor movement" that "demonstrate that despite the interests and desires of capitalists, progress toward social justice is possible".They argue that an ecological socialism must be "built on hope, not fear".In June 2008, The University of Michigan Press severed ties with the British independent publishing firm, Pluto Press for which it served as the American distributor.