In the new society, "scientists set the rules." Growth is allowed, but "only as long as it doesn't breach the limits set by ecologists." In other words, ecological central planning.
But, as Bailey points out, there is overwhelming evidence to support the proposition that capitalist development, rather than state control and scientific oversight, is the best solution to environmental problems. Capitalism creates the wealth that makes the goals of environmental stewardship attainable, whereas the impoverishment that attends socialist/technocratic regimes not only increases human suffering, it makes those goals ever more unattainable.
Read the whole thing here.