In 2100, Earth has crossed +3°C of warming. Ecosystems have collapsed, oceans are toxic, and humanity survives underground under a tyrannical regime. Gaya, pregnant and part of the resistance, risks everything to change history. Using solar storms to open windows in space-time, the rebels send warnings to the past and finally reach Sarah in 2026. But the regime will do anything to stop them, fearing that a changed past could erase its power. Grounded in IPCC projections for a planet 3°C warmer, Agenda 2100 is a dystopian hard sci-fi about motherhood, sacrifice, resistance, and humanity’s fight to rewrite its future.