This Stanford University news summary of a Nature study shows that climate change has already likely influenced 3–20% of armed conflict risk and could more than double that influence (to ~13% at 2°C warming and ~26% at 4°C), arguing that climate-driven extremes damage economies, cut agricultural output and act as a “stress multiplier” that exacerbates inequality and violence; the piece’s focus on climate as a material security risk and on adaptation, aid and conflict-mitigation responses connects directly to the book’s “Call to Action: Our World & Our Future” and PART 1: The Purposeful Investor by framing climate change as a systemic, justice-related risk investors must manage and an area for purposeful investment in mitigation, adaptation and stability-building interventions.