The researchers wanted to see if adding data about global warming and natural disasters to a safety ranking system called the Global Peace Index (GPI) would make it better. They collected information from different sources about things like climate change and disasters and used machine learning models to analyze the data. The results showed that including data on global warming and disasters improved the accuracy of the ranking system by more than 70%. This means that adding this information could help countries understand how safe they are and maybe help reduce global warming too.