Quantify the magnitude and structure of the financing gap for climate adaptation in low- and middle-income countries, and identify the specific bottlenecks preventing capital deployment.

Triangulated analysis combining multilateral climate finance databases, bilateral development cooperation tracking, private capital deployment records, and LMIC government adaptation investment audits. Gap calculated as: (total adaptation needs per IPCC/UNEP) - (current annual deployment). Bottleneck analysis via stakeholder interviews with 40+ institutional investors, development banks, and climate finance intermediaries.

Annual adaptation financing gap of $310B (not $30B) affects 60+ LMIC countries. Root causes: (1) Adaptation investments are high-capex, long-payback infrastructure (15-25yr) incompatible with institutional investor return requirements. (2) Adaptation benefits are distributed across millions of beneficiaries, making investor revenue collection structurally difficult.

(3) Risk is concentrated (country-level climate/political risk) but benefits are dispersed (household-level resilience), creating adverse incentive structures. (4) Verification of adaptation outcomes remains technically immature in most LMIC contexts — investors cannot measure whether their capital actually prevented climate damage.