Create dedicated public financing for cooling infrastructure in the most heat-vulnerable low-income neighborhoods, with community boards controlling spending priorities.

The fund operates on three mechanisms: (1) Heat Equity Bond — municipalities issue bonds backed by avoided emergency healthcare costs from heat-related illness; savings fund cool pavement, shade structures, and community cooling centers; (2) Cool Block Grants — $50,000-200,000 grants to neighborhood associations for self-selected cooling investments from an approved menu (bus stop shade, pocket parks, reflective roofs); (3) Maintenance endowment — 20% of all investments go into an endowment funding ongoing tree maintenance and infrastructure upkeep, preventing the "greening-then-abandonment" cycle that plagues equity-focused programs.

Anti-displacement requirement: funding eligibility requires municipalities to adopt rent stabilization in target neighborhoods for 10 years post-investment. 7°C and increased foot traffic 30% with zero displacement when paired with tenant protections.