Baseline (fossil kerosene only)#
Optimization using only fossil kerosene — no alternative fuels, no new aircraft types. This establishes the counterfactual: what happens if aviation does nothing?
Each run script optimizes for a single background scenario (SSP1-1.9, SSP2-2.6, or SSP5-4.5) across three technology levels (lower, mid, upper). The comparison script gathers all results and plots cross-scenario trends.
