1 Synopsis

This report analyzes the U.S. National Oceanic and Atmospheric Administration (NOAA) Storm Database (1950–Nov 2011) to identify: (1) which event types are most harmful to population health, and (2) which event types have the greatest economic consequences. Starting from the original compressed CSV file, we load, clean, and transform the data in a fully reproducible R Markdown workflow. We aggregate fatalities, injuries, and inflation-agnostic economic damages (property + crop) by event type. Results show that tornadoes dominate health impacts (fatalities and injuries combined), while floods and hurricanes/typhoons account for the largest economic losses. Findings are visualized in ≤3 figures as required, with all code shown (echo=TRUE).

2 Data Processing

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