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Examining the Role of Carbon Capture and Storage Through an Ethical Lens

Abstract

The risk posed by anthropogenic climate change is generally accepted, and the challenge we face to reduce greenhouse gas (GHG) emissions to a tolerable limit cannot be underestimated. Reducing GHG emissions can be achieved either by producing less GHG to begin with or by emitting less GHG into the atmosphere. One carbon mitigation technology with large potential for capturing carbon dioxide at the point source of emissions is carbon capture and storage (CCS). However, the merits of CCS have been questioned, both on practical and ethical grounds. While the practical concerns have already received substantial attention, the ethical concerns still demand further consideration. This article aims to respond to this deficit by reviewing the critical ethical challenges raised by CCS as a possible tool in a climate mitigation strategy and argues that the urgency stemming from climate change underpins many of the concerns raised by CCS.

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Notes

  1. The CCS process is comprised of three key stages: separation, transport; and storage. Initially, CO2 is separated from other exhaust gases and contaminants produced when fossil fuels are burnt for energy generation or other industrial processes. After separation, the CO2 is then compressed and transported to a location, such as a geologic aquifer, for storage. At this storage site, the CO2 is then injected into the ground under rock formations to depths of 1 km or more. Once injected, sensing technologies are used to monitor the CO2 to ensure safe and long term storage.

  2. Singer (1999) notes this universal point of view with regard to ethical judgements has been reflected in a wide range of theories, some of which are highly incompatible. This includes such theories as the ‘Golden Rule’ in Christianity, the Stoics’ view that ethics is derived from a universal natural law, Kant’s Principle of Universalizability along with R. M. Hare’s later development of Kant’s theory, Hume and Smith’s appeal to an impartial spectator in eighteenth century moral philosophy, utilitarian views from Bentham to J. J. C. Smart regarding the equal value of persons, and Rawls’ development of ethical principles from the Original Position. In these vastly different ethical theories and approaches, the one common element that can be drawn out is the notion that ethics implies that we look beyond our own concerns in order to also consider concerns of others. We do, however, recognise that the fundamental differences in these theories are extensive and subject of much ongoing debate.

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Medvecky, F., Lacey, J. & Ashworth, P. Examining the Role of Carbon Capture and Storage Through an Ethical Lens. Sci Eng Ethics 20, 1111–1128 (2014). https://doi.org/10.1007/s11948-013-9474-z

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Keywords

  • CCS
  • Climate change
  • Ethics
  • Intergenerational justice
  • Mitigation
  • Responsibility
  • Risk