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Physical climate hazard exposure in a country’s import basket. Uses INFORM absolute hazard scores (0-10) for cross-country ranking, and ND-GAIN vulnerability for longitudinal trend. Distinct from /stranded-assets (fossil + debt proxy, not physical hazard).
Source: INFORM Risk Index 2026 v072 (JRC/EC, open access, absolute hazard scores 0-10) | INFORM Risk Trend 2017-2026 (JRC/EC, open access) | ND-GAIN Country Index 2026 (Notre Dame Global Adaptation Initiative, open access, relative-change vulnerability scores) | BACI 202501 (CEPII), bilateral trade flows (country-pair totals), 1995-2022 (retrieved 2026-04-28)
Methodology: CHWID = import-share-weighted mean INFORM physical hazard score across suppliers with a known score (INFORM 0-10, absolute). Stranded-Supply Score = share of imports from suppliers with INFORM hazard >= 6. Metrics are supplier-country level; BACI bilateral_year has no product dimension, so per-HS-chapter concentration and product re-routing are not computed. ND-GAIN vulnerability is a projected relative-change score (NOT absolute hazard); used only for longitudinal trend, not cross-country ranking. Distinct from /stranded-assets, which uses a fossil-export + sovereign-debt proxy, not physical hazard data.