# Replication code and data for: Aging in a warming world: global projections of cumulative and acute heat exposure of older adults By Giacomo Falchetta, Enrica De Cian, Ian Sue Wing and Deborah Carr Software requirements: - R v4.3+: https://cran.r-project.org/bin/windows/base/ - RStudio: v2023.06.0+: https://posit.co/download/rstudio-desktop/ - Package dependencies: raster, sf, tidyverse, rasterVis, rgdal, maptools, pbapply, terra, knitr, kableExtra, modelsummary, openxlsx, xtable, ggforce, maptools, weights, spatstat, rworldmap, scales, patchwork, stars, viridis, devtools, stargazer, readxl, nominatimlite, urbnmapr To replicate the analysis: - Clone the replication code repository from https://github.com/giacfalk/aging_climate - Download input data from this Zenodo data repository - Download all the 1km age and gender-stratified global population counts rasters from the following WorldPop page https://hub.worldpop.org/geodata/summary?id=24798 and put them in a subdirectory of the working directory called "AGEPOP" - Run the "project_pop.R" script to generate gridded age-stratified population data for each SSP scenario - Run the "compare_pop_projections.R" file to compare the generated gridded age-stratified population data with an array of pre-existing sources from different countries and produce a summary comparison table (NOTE: before running the script, decompress the "new_comparison_data.zip" folder into the working directory) - Run "projections_exposure_m.R" to quantify heat exposure and generate the figures and tables reported in the paper To process the data and run succesfully, the script requires a computer with at least 32GB RAM. The running time varies based on CPU characteristics, but a runtime of at least 2 hours should be expected to generate all the output data, figures, and tables. All output files are saved in the working directory. Manuscript under peer review. Upon publication, a link to the paper will be made available at this repository. ___ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.