In his recent op-ed in The Washington Post, Professor of philosophy Stephen Gardiner argues that climate change is a pressing ethical challenge. He writes, ‘Climate change presents a severe ethical challenge, forcing us to confront difficult questions as individual moral agents, and even more so as members of larger political systems. It is genuinely global and seriously intergenerational, and crosses species boundaries. It also takes place in a setting where existing institutions and theories are weak, proving little ethical guidance.’