Pakistan’s floods of 2022 were the latest, and most damaging yet, addition to the long history of floods in the country. As the muddy waters slowly recede, the need for speeding up action to face future floods stands clear.

Kaveri Iychettira and Afreen Siddiqi explain why computational modelling is a useful tool, especially when stakes are high and resources are constrained, and detail why developing countries should build capacity for it. 

With decision-makers relying on a growing torrent of forecasts regarding COVID-19 and other important issues, it is more important than ever that they ask questions about how the projections were made. To use predictive tools more effectively, policymakers should ask four questions in particular.