After major disasters, public debate often treats them as unexpected or unprecedented. This reaction is not necessarily about the absence of warnings. It reflects how societies process shock – and how authorities often explain disruption as unavoidable, rather than the result of earlier choices.
Extreme weather is rarely unpredictable. Days, sometimes weeks, in advance, scientists are able to warn of an increased risk of storms, floods, droughts or other hazards. Yet the cycle repeats.
To understand why this is, colleagues and I reconstructed the scientific warnings and the official responses to major floods in Luxembourg in July 2021 – my home country’s most damaging disaster on record. Those floods caused far more damage than they would have done if early action was taken, but Luxembourg isn’t an outlier: many other countries suffer from the same problems we identify.
