Many historians have attributed the decline of the Roman Empire primarily to military overextension and economic instability. However, recent archaeological findings suggest that climate change played a more significant, albeit less direct, role. Evidence from ice cores and tree rings indicates a prolonged period of drought and colder temperatures starting in the 3rd century CE, impacting agricultural yields and leading to widespread food shortages and population displacement, which in turn exacerbated political unrest and military vulnerabilities. The primary purpose of the passage is to: