Introduction

Following years of growing (and entirely well-placed) concern about the climate crisis, it came as something of a shock to the system to find that this had been joined (and perhaps at times even surpassed) more recently in the context of the Russian invasion of Ukraine by renewed concern about an energy security crisis. Unprecedented and very costly responses to the latter, though deemed relatively successful in the short term, served also to remind us, first, that dealing with intensified fears of energy shortages can shift the focus problematically from the more persistent challenge of ...