Integral Planetary Defense. A new security concept for the Anthropocene

The entry of human populations into the Anthropocene calls for a rethinking of the meaning of planetary security. At the theoretical intersection of Gaia, Anthropocene and Planetary Defense studies, we propose a new concept of Integral Planetary Defense that includes ecological threats and cosmic threats from a coherent philosophical, legal and political approach. Thus, we claim the need to overcome, on the one hand, the anthropocentrism of "human security" strategies and, on the other hand, the epistemological reductionism of traditional planetary defense. To this end, the Anthropocene is first presented as a new horizon of belonging, the main ecological and cosmic threats affecting the integrity of the biosphere are analyzed, and finally, the actors, instruments, and antecedents that can serve the objectives of the Integral Planetary Defense are identified. In this way, we inaugurate a dialogue between philosophy, ecology, astrophysics, and legal sciences for the exploration of a new strategic notion of planetary security.