Excellent question. When we factor in wars, particularly nuclear conflict, the picture changes significantly. The Bulletin of the Atomic Scientists moved the Doomsday Clock to 85 seconds to midnight in 2026 - the closest it's ever been to catastrophe. This reflects heightened nuclear risks from the ongoing Russia-Ukraine war, tensions between India and Pakistan, and North Korea's continued nuclear build-up. The expiration of the New START treaty in February 2026 could trigger a rapid arms race, with both the US and Russia capable of deploying hundreds of additional warheads within weeks. While the fertility collapse we discussed might represent a slow demographic winter, nuclear war represents an immediate existential threat that could end civilization abruptly. These risks are interconnected - the same geopolitical tensions driving nuclear proliferation also undermine global cooperation needed to address environmental and health crises.