Doctor John Hadley

Doctor John Hadley

Senior Lecturer,
Arts (sohca)


John Hadley is a senior lecturer in philosophy in the School of Humanities and Communication Arts.  He was formerly a lecturer in philosophy in the School of Humanities and Social Sciences, and Lecturer in Communication Ethics in the School of Communication, Charles Sturt University. During his PhD candidature at the University of Sydney, John lectured in the philosophy department and was a guest lecturer for USYD Laboratory Animal Services. He has published on a wide range of topics in animal and environmental ethics, including recent papers on assisting wild animals in need, animal rights extremism, the reporting of animal research in the media,  and the ethical limits of veterinary expenditure. He has been an invited speaker at international conferences and symposia and has refereed for journals such as Journal of Applied Philosophy, Journal of Value Inquiry, Social Theory and Practice, Political Studies, Environmental Values, and Environmental Philosophy. He is editor (with Elisa Aaltola) of Animal Ethics and Philosophy: Questioning the Orthodoxy (Rowman and Littlefield International, 2014). In Animal Property Rights: A Theory of Habitat Rights for Wild Animals (Lexington Press, 2015), John explores the theoretical and practical implications of extending liberal property rights theory to animals.

This information has been contributed by Doctor Hadley.


  • PhD University of Sydney
  • BA University of Sydney

Organisational Unit (School / Division)

  • Arts (sohca)


Phone: (02) 9772 6124
Location: 7.G.10A

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  • Hadley, J. (2015), 'Animal Property Rights: A Theory of Habitat Rights for Wild Animals', : Lexington Books 9780739189252.

Chapters in Books

  • Hadley, J. (2017), 'Animal property rights : justice or conservation?', Natural Resources and Environmental Justice: Australian Perspectives, CSIRO 9781486306374.
  • Hadley, J. (2014), 'A metalevel problem for animal rights theory', Animal Ethics and Philosophy: Questioning the Orthodoxy, Rowman and Littlefield 9781783481811.
  • Hadley, J. and Aaltola, E. (2014), 'Introduction : questioning the orthodoxy', Animal Ethics and Philosophy: Questioning the Orthodoxy, Rowman and Littlefiled 9781783481811.
  • O'Sullivan, S. and Hadley, J. (2009), 'Conflict in Peter Singer's Philosophy - Animal Protection versus an Obligation to Give', On the Ethical Life: The Philosophy of Peter Singer, Cambridge Scholars Publishing 9781443809818.
  • O'Sullivan, S. and Hadley, J. (2008), 'Utilitarianism for the Dog that has everything', What Philosophy Can Tell You About Your Dog, Open Court Publishing 9780812696530.

Journal Articles

  • Hadley, J. (2017), 'Religiosity and public reason : the case of direct action animal rights advocacy', Res Publica, vol 23, no 3 , pp 299 - 312.
  • Hadley, J. (2017), 'Non-autonomous sentient beings and original acquisition', Analysis, vol 77, no 2 , pp 293 - 299.
  • Hadley, J. (2014), 'Animal rights advocacy and legitimate public deliberation', Political Studies, .
  • Hadley, J. (2013), 'Liberty and valuing sentient life', Ethics and the Environment, vol 18, no 1 , pp 87 - 103.
  • Hadley, J. (2012), 'Telling it like it is : a proposal to improve transparency in biomedical research', Between the Species, vol 15, no 1 , pp 103 - 126.
  • Hadley, J. (2012), 'Confining 'disenhanced' animals', Nanoethics, vol 6, no 1 , pp 41 - 46.
  • Hadley, J. (2010), 'Paying their way: dissident opinion, advertising and access to the public sphere', Australian Journal of Professional and Applied Ethics, vol 10, no 1-2 , pp 54 - 61.
  • Hadley, J. (2009), 'Animal Rights and Self-Defense Theory', The Journal of Value Inquiry, vol 43, no 2 , pp 165 - 177.
  • Hadley, J. and O'Sullivan, S. (2009), 'World Poverty, Animal Minds and the Ethics of Veterinary Expenditure', Environmental Values, vol 18, no 3 , pp 361 - 378.
  • Hadley, J. (2009), 'We Cannot Experience Abstractions: Moral Responsibility for 'Eternal Treblinka'', Southerly, vol 69, no 1 , pp 213 - 222.
  • Hadley, J. (2009), 'Animal Rights Extremism and the Terrorism Question', Journal of Social Philosophy, vol 40, no 3 , pp 363 - 378.
  • Hadley, J. (2007), 'Critique of Callicott's Biosocial Moral Theory', Ethics and the Environment, vol 12, no 1 , pp 67 - 78.
  • Hadley, J. (2006), 'The Duty to Aid Nonhuman Animals in Dire Need', Journal of Applied Philosophy, vol 23, no 4 , pp 445 - 451.
  • Hadley, J. (2005), 'Excluding Destruction: Towards An Environmentally Sustainable Libertarian Property Rights Regime', Philosophy in the Contemporary World, vol 12, no 2 , pp 22 - 29.
  • Hadley, J. (2005), 'Nonhuman Animal Property: Reconciling Environmentalism and Animal Rights', Journal of Social Philosophy, vol 36, no 3 , pp 305 - 315.
  • Hadley, J. (2004), 'Using and abusing others : a reply to Machan', Journal of Value Inquiry, vol 38, no 3 , pp 411 - 414.

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