This repository includes the code and the processed climate data used to examine the long-term change in atmospheric CO2 growth rate. The code will generate the main figures (Figure 1, 2 and 3) in the paper - Luo, X. & Keenan, T. F. (2022) Tropical extreme droughts drive long-term increase in atmospheric CO2 growth rate variability. Nature Communications, doi: 10.1038/s41467-022-28824-5. Please refer to the "Data Availability Statement" in the paper and cite the original sources if you need to use one or more datasets published here. There are three files in the repository: 1) CGR_analysis_input.mat is the processed data in matlab format to support the study; 2) master_figures_CGR_publish_v1.m is the main matlab routine that used to generate figures; 3) supporting code is a folder that contains third-party routines to support the main routine.