ON GREEN LIBERTY calls us to the inconvenient truth of applying consistently the liberal outlook. Van den Berg extends John Stuart Mill’s no-harm principle to include non-human animals and future generations. ON GREEN LIBERTY notes that, just as there is consensus among all contemporary political parties that slavery is unacceptable, so also should the exploitation of non-human animals and the harm done to future generations by degrading planet Earth be unacceptable. Green liberalism is l...