Forget what you think you know about national security in the age of climate change. The most powerful, yet most overlooked stabilizer of peace is not a technology, treaty or military intervention – it is gender equality. As climate acts as a threat multiplier of conflict, we must redesign our systems at the speed and scale this moment demands. Given this urgency, can we really afford to sideline the knowledge, agency and leadership of half the world’s population: women? At a time when it is imperative to be solution-oriented, this book offers pathways for action grounded in facts and designed to transition from tipping points toward global stability.

Inspired by Athena, the Greek goddess of wisdom, Garcha coins the term of the Athenian Edge, referring to the unique insights and lived experiences that equip women to play a catalytic role in building national security in light of climate change. Drawing on original data analytics, the book establishes gender equality as the greatest predictor of climate resilience and interstate peace, and explores the gender–climate–peace nexus through twelve dimensions of climate security – energy, manufacturing, transport, food, water, habitat, early warning, climate shocks, infrastructure, governance, social and economic spheres. Case studies from across continents – including Colombia, New Zealand, Nigeria, Singapore, Sweden and Yemen – showcase these dimensions operating in practice, demonstrating the remarkable progress already being made by those embracing this Edge and what becomes possible when strategic wisdom meets action.

Moving from diagnosis to action, the book offers a suite of policy and capital solutions anchored in a gender-transformative approach – from carbon market regulation to national security strategies, from blended finance to orange-green bonds, and from just transition policies to transitional justice mechanisms. Ultimately, The Athenian Edge provides readers with an operationalization framework to act at the speed and scale the twin climate–conflict crisis demands, transforming gender equality into an operational strategy for sustainable peace and climate resilience.