− Agency is one of five core analytical problems in the Earth System Governance (ESG) Project’s research framework, which offers a unique approach to the study of environmental governance. − Agency in Earth System Governance draws lessons from ESG–Agency research through a systematic review of 322 peer-reviewed journal articles published between 2008 and 2016 and contained in the ESG–Agency Harvesting Database.− ESG–Agency research draws on diverse disciplinary perspectives with distinct clusters of scholars rooted in the fields of global environmental politics, policy studies, and socio-ecological systems. − Collectively, the chapters in Agency in Earth System Governance provide an accessible synthesis of some of the field’s major questions and debates and a state-of-the-art understanding of how diverse actors engage with and exercise authority in environmental governance.

− ESG-Agency scholars are at the forefront of exploring novel forms of agency within changing global governance architectures, such as the emergence of transnational and private governance, over the last decade. − Agency and architecture influence each other in a range of ways, underpinning processes of change in institutions, governance, and politics.− Greater focus is required concerning causal mechanisms of agency-architecture interplay, and their role in producing reflexivity and transformations in governance systems under pressure.

− The role of the state as an agent of earth system governance has become more complex, contingent, and interdependent. − Although participatory and collaborative processes have contributed to more effective, equitable, and legitimate environmental governance outcomes in some instances, analyses of these processes should be situated within a broader governance perspective, which recasts questions of policy change around questions of power and justice. −The complexity and normative aspects of agency in earth system governance requires new forms of policy evaluation that account for social impacts and the ability of governance systems to adapt. − Many of the core analytical concepts in ESG–Agency scholarship, such as agency, power, authority, and accountability, remain under-theorized. In addition, some types of actors, including women, labor, non-human agents, those who work against earth system governance, and many voices from the Global South, remain largely hidden. − ESG–Agency scholars need to develop research projects and collaborations in understudied regions while also recruiting and supporting scholars in those regions to engage with this research agenda.

− ESG–Agency scholarship reveals that diverse forms of agency are crucial to cultivating adaptiveness of governance systems within complex and changing contexts. − ESG–Agency scholars are well-positioned to apply extensive insights to major emerging questions in the social sciences about adaptiveness and renewal of political and governance systems across many spheres of society. − Greater focus is required concerning the effects of agency on adaptiveness of environmental governance systems in several ways: materially, normatively, and temporally.

The concept of redundancy employed in this essay is the one used in mathematics and linguistics to designate symbols that do not add information to a sequence. One of the hazards of teaching twentieth-century war literature is the tacit inference of redundancy by readers, namely that the representational conventions as well as the facts and values represented are ‘predictable from … context’. The claim that twentieth-century war writing is made superfluous by War and Peace (1869) is polemical, but it is also intended to do serious work: to draw attention to representations of war which are not predictable from context, and to renew questions such as why representing war as irrational, murderous activity is unefficacious, and why we would imagine otherwise.

The designs of War and Peace as war writing can be recognised as early as 1853, when Tolstoy published a story drawing on his own military experience in the Caucasus:

In october 1099, following the conquest of Jerusalem, First Crusade forces led by Duke Godfrey of Bouillon laid siege to the city of Arsuf, about fifteen miles north of modern Tel Aviv. According to the early-twelfth-century chronicler Albert of Aachen, the city's defenders attempted to distract Godfrey by crucifying one of Godfrey's men, Gerard of Avesnes. They placed him on the city walls within sight of the siege forces. Dying yet still able to talk, Gerard begged Godfrey to avenge his suffering and death. Godfrey told Gerard that, unfortunately, he could not avenge him; diverting men to do so would cost them the city. Furthermore, he added, ‘Certainly if you have to die, it is more useful that you alone should die than that our decree and be violated and this city remain always unsafe for pilgrims. For if you die to the present life, you will have life with Christ in heaven.’ With that Gerard was left to his fate, while the crusaders continued to assault the city.

The assault failed dramatically, prompting reflection on the potential causes of God's disfavour. In particular, Godfrey's response to Gerard's request for vengeance was called into question. Arnulf of Chocques, the newly appointed patriarch of Jerusalem, roundly condemned Godfrey not only for abandoning Gerard to his fate, but especially for failing to avenge his death. Arnulf described Godfrey's actions as ‘treachery and hardheartedness … impiety … base filth of all crimes’.