Ontological reduction and the World of Numbers
Willard Van Orman Quine
Freedom and Necessity in Nature: A Problem in Ecological Ethics
Murray Bookchin
Philosophy of Mind
Georg Wilhelm Friedrich Hegel
A Companion to Contemporary Political Philosophy, Volume I
Robert E. Goodin & Philip Pettit & Thomas Pogge
Earth System Science: A Very Short Introduction
Tim Lenton
Earthy Realism: The Meaning of Gaia
James Lovelock & Mary Midgley
Theory of the Earth
Thomas Nail